US President-elect Barack Obama on Monday chose Chinese American Steven Chu, a Nobel physics laureate, to be his energy secretary.

Obama hit by health nominee's withdrawal

Barack Obama's choice to spearhead US healthcare reform stepped down in a flap over personal taxes on Tuesday, an embarrassing blow for the US president, who is just two weeks into his presidency.

Sources: Obama has more than 6 people for court
Gary Locke picked as US commerce chief
Obama picks Republican senator for commerce job
Obama to spend 2nd full day on foreign affairs
Obama's personal win: keeping the BlackBerry
AP Poll: People optimistic on Obama by 3-1 margin
Obama tasks Clinton to step up diplomacy
Obama sprints through first full day in office
Obama freezes salaries of some White House aides
Nearly 38 million people watched inauguration
Obama tackles recession, war and ethics on day 1
China-US ties to grow - experts
Obamas celebrate, at last, on way to White House
Obama gives White House site online overhaul
Obama pledges new start with Muslims
Obama: US will 'roll back the specter of a warming planet'
Bush twins offer advice for Sasha, Malia
Mandela praises Obama for his message of hope
San Francisco pranksters rename Bush Street
Obama called 3 different names during ceremony
Gone to Texas: Bush returns to state he loves
World greets Obama with jubilation and caution
1M crowd DC for Obama's inauguration
Obama takes power, urges unity vs. 'raging storms'
Inauguration security tight after threats received
More than 1M crowd DC for Obama's inauguration
Crowds of 1 million or more to test DC
Worldwide, people mobilize for Obama inauguration
Obama to step into history as 1st black president
Bush saying goodbye to Washington, hello to Texas
All ears for 44th president's speech
How the day will unfold for Obama in Washington
First family grooves with pop stars
Japan learns English from Obama speech textbook
Countdown to Obama presidency as King remembered
Irish bookie offers odds on Obama speech soundbites
Obama honors rival McCain on eve of inauguration
Fairy godfather invites disadvantaged to inaugural ball
Black Americans ride the buses to witness history
Obama hosting pricey party in a dicey economy
Obama rides the rails to DC, packing American's hope
Obama says got 'choked up' leaving Chicago
Richardson move leaves hole in Obama cabinet
Obama urges Americans to share burden of economic woes
Obama says goodbye to late grandmother in Hawaii
Obama taps Geithner, Summers for top economic jobs
Clinton accepts Obama secretary of state offer: report
Obama Supporters Watch YouTube at House Parties
Palin's home church damaged by arson
Many US Democrats want a more assertive Obama
Obama wrapping up cabinet picks with Richardson
5 things the war Cabinet says about Obama
Obama names Clinton, national security team
Obama to name Clinton secretary of state on Monday
Hawaii hopes for boost in tourism from Obama link
Official: Gates to stay at Pentagon
Obama's Cabinet begins to take shape
Obama on track to name Clinton as top diplomat
Obama taps Arizona Gov for homeland security
President-elect Obama reaches out to former rivals
Sen. Clinton being considered for secretary of state
Biden visits Cheney, calls foreign leaders
Crowd of 1 million could attend Obama inauguration
Cheney, Biden to meet privately at VP residence
Laura Bush shares W.House tips with Michelle Obama
Obama makes historic White House visit
Economy won't stop Obama's priorities, aides say
Kenyan PM says Obama victory against racial biases
US carmakers seek help, Toyota hacks outlook
NYC museum unveils Michelle Obama portrait
Obama speaks with 9 world leaders
US comedians sharpen claws for Obama presidency
Bush wants to ensure a smooth transfer to Obama
Obama names White House chief of staff
Great expectations: Obama will have to deliver
Obama faces increased risk of conflict - intel chief
Obama picks Clinton alum Emanuel chief of WH staff
Obama to announce his pick for Treasury
President Hu congratulates Obama on victory
Move over Barney, new dog moving into White House
Obama picks Clinton alum Emanuel chief of WH staff
Quiet first day for Obama after his historic win
Tears of joy shed at Beijing bash
Democrat Obama wins US presidency
US stocks plunge as investors ponder Obama presidency
Obama aims for smooth transition
Chinese communities rejoice in win
US election sparks concern, interest in China
Obama victory sets off jubilation
Obama's landslide victory
Victory 'alters landscape'
European Commission congratulates Obama
The text of Barack Obama's victory speech in full
Young voters lean heavily toward Obama
Obama victory sparks cheers around the globe
Bush congratulates Obama on victory, McCain concedes defeat
President Hu congratulates Obama
NZ PM congratulates Obama for winning election
Obama to inherit feeble economy awash in red ink
Obama asks McCain for help leading country
Japanese PM congratulates Obama on election as US president
Exit poll: Obama wins women, blacks, Hispanics
Obama on the ballot: Elation and disbelief
A worried America chooses its course for change
Long lines but few other problems for voters
Obama, McCain still campaigning as votes are cast
Determined Texas woman, 92, votes in ambulance
Virtual world keeps tabs on US presidential election
Obama wins Vermont, McCain Kentucky
Several EU finance ministers voice support for Obama
Obama and McCain await voters' decision
Record number of voters expected to deluge polls
US presidential election kicks off
The myths of US campaign that wouldn't go away
Obama leads McCain in 6 of 8 key states
Obama mourns grandmother on election eve
Final sprint is mostly on GOP turf
Bush praised by both parties for transition planning
Obama in control heading into election
Bush out of sight until after election
Obama's grandmother dies a day before election
Obama camp turns to superstitions
McCain pokes fun at campaign on 'Saturday Night Live'
Obama, McCain eye potential administration teams
Palin takes prank call from fake French president
Campaigns unleash massive get-out-vote drives
McCain, Obama hunt for votes in final 48 hours
McCain, Obama seek to turn out the vote
Palin takes prank call from fake Sarkozy
Poll shows Obama backers gleeful, McCain's glum
AP: Obama aunt from Kenya living in US illegally
Obama, McCain visit red states in final stretch
Obama approaches lawmaker about White House post
2 arrested for hanging Obama effigy on campus
Recession shadows next president's economic aims
Intensity grows as presidential election looms
Bill Clinton hails Obama as America's future
Obama goes prime-time; McCain goes after Obama
Republican VP nominee Palin eyeing 2012
Obama promises rescue plan for middle class in ad
McCain, Palin seek to dent Obama's armor
Skinhead plot to assassinate Obama 'not fully formed'
Poll shows Obama beats McCain among early voters
McCain fights for comeback in hard-hit Ohio
'Barack-o'-lanterns' light up Democrats' Halloween
Obama, McCain lavish attention on key Ohio
Feds disrupt skinhead plot to assassinate Obama
Alaska's largest newspaper endorses Obama
Presidential candidates spar with 9 days to go
Obama lead drops to 5 points
The Sarah Palin look is Halloween's must-have
Obama and McCain roll through Western swing states
Palin testifies to investigator in troopergate dispute
Both sides gird for legal challenges in US election
GOP open seats boost Democrats House chances
Police fear riots if Obama loses US election
McCain might skip his own election-night party
Obama, McCain neck-and-neck for rural vote: poll
Ugly election incidents show lingering US racism
Party spent $150K on Palin clothes
US presidential race tightens in final weeks
Obama an overwhelming hit with Chinese: poll
Spreading the wealth? US already does it
Lula: Financial crisis to help Obama's race for US presidency
US presidential candidates use loophole to set up joint accounts
Obama opens double-digit lead over McCain: poll
Dead bear covered with Obama signs found at school
Obama to offer position for Powell if elected
Obama, Clinton campaign together to clinch Florida
Long lines form as early voting begins in Florida
Obama gets boost from huge funding, Powell backing
Palin draws big ratings for 'Saturday Night Live'
Powell endorses Obama,chides tone of McCain campaign
Biden says robo calls 'scurrilous,' mocks Palin
Washington Post, LA Times endorse Obama for president
McCain, Obama trade jokes, not jabs at NYC dinner
Obama buys first video game campaign ads
Obama has 5-point lead on McCain
Scientists view both Obama, McCain as supportive
McCain seeks to recharge candidacy at final debate
McCain and Obama meet in final White House debate
Voters use gut feeling to pick the next US president
McCain proposes $52.5 billion economic plan
Obama, McCain seek leader's image in final debate
Obama outlines economic rescue plan
McCain vows to whip Obama's 'you know what'
McCain considering new economic plan
Obama holds 4-point lead on McCain in race
McCain, Obama offer dueling ideas to save economy
Alaska panel finds Palin abused power in firing
McCain, Obama clash over economic crisis
Voter-fraud task force raids office backing Obama
McCain, Obama discuss possible Treasury secretary picks
Obama, McCain battle over taxes, economy
Kenya deports US author of anti-Obama book
Character attacks emerge in McCain-Obama race
Obama widens leading margins over McCain in polls
Debate stakes higher for McCain; insults mount
Palin says Obama friendly with terrorists
Palin-Biden debate sets TV ratings record
Some facts adrift in US veep debate
Obama campaign looks to connect with iPhone users
Palin stands her ground in VP debate with Biden
McCain gives up on Michigan in a major retreat
Palin defends terrorist comment against Obama
Biden, Palin spar over economy, taxes in debate
Stakes are sky-high for Palin-Biden debate
Poll: Obama takes a 7-point lead over McCain
Polls: Obama leads in critical trio of states
House vote against bailout wounds McCain
2 quick polls give Obama edge in debate
White House, Congress push for bailout deal
TV pundits: No clear winner in presidential debate
Fact checking the first presidential debate
Obama, McCain argue over war, taxes in 1st debate
Obama, McCain say Congress must pass bailout plan
Online tool estimates taxes under McCain, Obama
Obama, McCain debate amid financial crisis
McCain to attend debate even without bailout deal
Dems, some in GOP question McCain's intervention
Tentative meltdown deal: Bush, McCain, Obama meet
Bush invites McCain, Obama to discuss bailout
US Congress angry over bailout as candidates bicker
Obama rejects McCain's call to delay debate
Obama ahead in four key states as voters fret over the economy
First Clinton, now Palin out of NYC rally
Obama rebounds in polls as US economic crisis bites
McCain, Obama joust over how to fix Wall Street
Clinton supporters ignore plea to back Obama
Palin spells out her role in McCain administration
Obama, McCain support stronger US-China cooperation
Film shows McCain's release from Vietnamese prison
Clinton predicts Obama will win 'pretty handily'
Lipstick comments color US presidential campaign
Obama is back on defense against McCain
McCain camp wants Obama apology for naming 'pig'
Poll shows big shift to McCain among white women
McCain-Palin becoming Palin-McCain?
McCain and Obama clash on economy
Obama raises $10 million after Palin speech
Palin's speech brings in cash for Obama
Analysis: McCain camp plays sexism card for Palin
McCain more likely to drop Palin, bookmakers say
Sarah Palin controversy stokes Mommy War
Anti-war protests planned for RNC opening day
Palin's age, inexperience rival Obama's
McCain orders convention curtailed for Gustav
Obama's speech: most popularly televiewed political convention
McCain chooses Alaska Gov. Sarah Palin for VP
Obama sketches promise of America
Obama says he'll cut taxes, end Iraq War
Gore accuses McCain of policies too close to Bush
Obama says he'll 'fix broken politics'
Obama just one step away from 'real history'
Dems choose Obama; Clinton joins in acclamation
Dems seek peace in party as Obama convention opens
Clinton backers split over Biden as VP choice
Obama picks Biden as VP running mate
Obama stays quiet over running mate
McCain Colo. office evacuated after letter threat
McCain spends $32m, Obama $55m in July
Obama's lead over McCain declines by half - poll
Time running out to make US VP picks
Democrats brace for Obama's VP pick
Sour economy top issue in US presidential race
Anti-Obama book mirrors anti-Kerry tactics
Clinton question looms ahead of US Democratic convention
Poll shows trouble signs in Obama's lead
Report: Clinton told to cast Obama as un-American
Clinton: Obama better than McCain
Obama takes aim at McCain's maverick image
Johansson embarrassed by hoopla over Obama e-mails
Obama opposes slavery reparations, apology
Economic models predict clear Obama win in November
Explosive issue of race hits Obama-McCain campaign
McCain camp: Obama shortchanged injured troops
Voters greet Obama trip with praise, skepticism
Obama visits Afghanistan to tour war zone
Obama says New Yorker insulted Muslim Americans
Obama opposes excluding Russia from G8
Obama, McCain debate on Iraq policy
White House, candidates plan power transfer
Poll rates Obama as Canadians' favorite politician
Poll: Obama shows lead in battleground states
Obama donates, asks donors to help Clinton's debt
Former president Clinton vows to help Obama
Dobson accuses Obama of 'distorting' Bible
Obama raises $22m in May; Clinton in debt
Senator Hagel to consider 'VP offer' from Obama
Obama: bin Laden must not be a martyr
Obama holding on to small lead over McCain - poll
Obama hires Clinton's ex-campaign chief
Gore endorses Obama and promises to help him
Black conservatives conflicted on Obama campaign
More Americans believe Obama's ability to handle economic issue: poll
Obama picks up more women voters' support
McCain's remarks on Iraq war draw fire
Clinton endorses Obama, ends bid
McCain challenges Obama on town hall meetings
Obama names a Kennedy to help pick veep
McCain, Obama plunge into 5-month general election
Obama clinches US Democratic nomination
Priest who mocked Clinton told to take a leave
McCain welcomes Obama with fresh criticism
Clinton says she's open to being Obama's VP
Primary season set to end with Obama poised to win
Clinton wins Puerto Rico primary
Obama distances himself from another clergyman
Obama, McCain quietly begin searching for VP nominees
Clinton wins Kentucky, Obama nomination leader
Edwards gives long-awaited endorsement to Obama
Clinton wins W.Va., Obama still nomination leader
Obama open to Clinton as possible running mate
Obama open to Clinton as running mate
Obama plans to declare victory May 20
Obama wins N.C. primary, Clinton wins Indiana
Obama wins NC Democratic primary; Clinton leads in Indiana
More than 3.5 million new voters - survey
Obama wins Guam caucuses by just 7 votes
Clinton calls for gas tax vote, Obama calls it 'shell' game
Early Indiana turnout heavy in strong Obama counties
Obama once again fails to impress in sport
Poll: Clinton leads McCain by 9 points
McCain calls Obama insensitive to poor people
Bush tweaks candidates at correspondents' dinner
North Carolina GOP leadership divided over ad
Clinton seeks to burnish military credentials in NC
Clinton's donations surge after Pennsylvania win
All eyes turn to Indiana in bitter Democratic race
Clinton's win still leaves her the underdog
Clinton says she can win White House for Democrats
Obama explains comment about McCain
Clinton wins Pennsylvania primary
Obama widens national lead in Democratic nomination race
Clinton, Obama collide in Pennsylvania primary
Clinton reaches for Pa. win
Clinton reaches for Pa. win; Obama says he'll be close
Clinton, Obama press for advantage ahead of pivotal primary
Clinton, Obama complain about complaining
Clinton, Obama embark on primary endgame
Clinton emphatically says Obama can win White House
Clinton, Obama won't vow to put loser on ticket as VP
Clinton faces grim poll data as debate looms
Clinton sketches first 100 days, Obama vows to help workers
Age an issue? McCain points to his sprightly mom
Obama's remarks gives Clinton an opening
McCain erases Obama lead
Elton John raises $2.5 million for Clinton
Traders bet Obama will win Democratic nomination
Clinton's top strategist quits post
Deal on Mich., Fla. unlikely before June
Michigan Democrats decide not to hold do-over primary election
Chelsea Clinton criticizes Bush
Obama wins most Texas delegates
Clinton, Obama press for more delegates in Texas process
Wall Street drives White House campaign cash flow
Big money in politics - sign of excess?
Clinton 'misspoke' about '96 Bosnia trip
19 people charged in California in major mortgage scam
Pa. Dems set enrollment record
Clinton proposes steps to ease housing crisis
Clinton takes lead over Obama in Gallup poll
Clinton unveils new stimulus package
Obama expands delegate lead over Clinton
Budget would torpedo Bush's tax cuts
Michigan, campaigns talk do-over primary
Ferraro leaves Clinton campaign post
Obama leads Clinton in Mississippi
New race row rocks Democrats as Mississippi votes
Obama refuses to be running mate of Clinton
Clintons push a Hillary/Obama ticket
Angry Boeing supporters target McCain
Obama rules out possibility to be Clinton's vice president
Obama wins Wyoming caucuses
Bush endorses McCain as GOP presidential nominee
Dems can't win without superdelegates
Hillary wins Ohio, Texas, bid alive
McCain wins nomination
Huckabee drops out of presidential race
McCain clinches; Obama, Clinton battle
Obama, Clinton duel in Ohio, Texas
Texas, Ohio could decide Dem nomination
Early voting shows huge Texas turnout
Obama slams Clinton on homestrech
Clinton team vows to fight pressure to quit
Obama makes only stop in RI, slams rival
Hillary Clinton raises $35m in Feb
Obama criticizes Bush, McCain on economy
Clinton links her fate to economy
Bush predicts GOP will hold White House
Obama photo in turban, robe causes stir
McCain says he could lose over war issue
Conservatives say Obama lacks patriotism
Nader announces run for US president
Obama: McCain puts lobbyists 'in charge'
'Shame on you,' Clinton tells Obama
Officer in Clinton motorcade killed in accident
Clinton dismisses suggestion that her campaign nearing end
Obama wins Democrats Abroad primary
Clinton faces daunting delegate deficit
McCain: Reports on lobbyist a 'smear'
Obama wins Wis. for 9th straight triumph
Obama wins Wisconsin for 9th straight
Black lawmakers rethink Clinton support
Republican front-runner McCain endorsed by Romney
Surging Obama whacks Clinton, McCain on economy
Clinton ex-campaign manager backs Obama
Obama proposes $210 billion for new jobs
Obama wins 3 primaries for delegate lead
McCain wins Washington D.C. Republican vote - NBC
Obama, McCain win Virginia, Maryland primaries
Clinton deputy campaign manager departs
Obama narrowly leads McCain in AP poll
Obama defeats Clinton in Maine caucuses
Obama cruises as Clinton shakes up campaign
Obama sweeps 3 states, Huckabee takes Kansas
Obama wins Nebraska, Washington state
Obama wins two contests, Huckabee takes Kansas
Huckabee wins Republican contest in Kansas
Analysis: Clinton and Obama start anew
Super Tuesday showdown begins in 24 states
Analysis: Clinton and Obama start anew
Latest Super Tuesday results
Clinton, McCain take early leads in US voting
Huckabee wins West Virginia Republican vote
Latest Super Tuesday results
Obama triumphs in Georgia primary
A Super Tuesday showdown in 24 states
Obama, Romney lead in California on Super Tuesday
Clinton, Obama in dead heat ahead of big vote
Candidates making Super Tuesday push
Democrat John Edwards quits US presidential race
Republican Giuliani to drop out presidential race
Kidnapped Chinese-born man freed
Obama says SC win turns a page
Florida governor endorses McCain
S.C. primary marked by talk of race
'Two against one' in Clintons' vs Obama campaign
Obama criticizes Clinton's candor
Clinton, Obama clash at debate
Poll: More Americans ready for black president
Americans abroad can now vote online
Hillary, Romney emerge to win Nevada caucuses
Economy takes US campaign spotlight
McCain wins South Carolina primary
Candidates struggle to widen appeal
Michigan further wrinkles close GOP race
US presidential race to be most expensive ever
Former Dem nominee Kerry endorses Obama
Poll: Economy ties war as top issue in US
Richardson ends presidential bid
US presidential candidates attend campaign stop

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Obama hit by health nominee's withdrawal