BARACK OBAMA

President Barack Obama has issued a letter of apology to Afghan President Hamid Karzai in response to the burning of copies of Koran at NATO's Bagram airbase, which provoked violent protests beginning Wednesday that have resulted in several deaths, including two coalition soldiers, believed to be Americans, shot dead by a man in an Afghan Army uniform.

Continuing its incremental approach to gay rights, the Obama administration is preparing to announce regulations that would make same-sex partners of federal employees eligible for more benefits.

U.S. Environmental Protection Agency Administrator Lisa Jackson said she believes hydraulic fracturing can be done safely. That may be a slight shift in her previous cautious view.

President Barack Obama has scheduled a meeting with Israeli President Shimon Peres for early March, in which the main topic of conversation will surely be Iran. Will it be practice for Obama's meeting with Netanyahu the next day?

Google Inc. announced Thursday that it will join other Internet companies such as Yahoo, Microsoft and AOL to allow a do not track button to be available for customers on a Web browser, limiting what personal information can be collected and used.

The White House on Thursday proposed a bill of rights that would give consumers greater online privacy protection and could eventually give the government greater powers to police Internet firms such as Google Inc and Facebook.

Eva Longoria, Rahm Emanuel and Kal Penn are among 35 national co-chairs that have been selected for Obama's 2012 re-election campaign.

CBS News reported that the Afghan National Army soldier turned his gun on American troops in eastern Afghanistan during Thursday's demonstrations against the burning of the Quran and other Islamic objects at Bagram air base, north of Kabul, earlier this week.

President Barack Obama has made a proposal to lower the corporate tax rate to 28 percent from 35 percent in an attempt to ensure that companies will be paying less in taxes for the U.S. to remain competitive globally. The proposal could intensify the tax-reform debate with the Presidential election approaching.

The Arizona CNN Republican debate, perhaps the last in the roller-coaster campaign to challenge President Barack Obama, saw rivals piling criticism on Rick Santorum, who was apparently trying to build on his surprise rise in recent polls.

Republican rivals pile criticism on US presidential candidate Rick Santorum to blunt surge.

The stage for the Arizona CNN Republican debate, the 20th and maybe the final debate of the GOP primary, was characteristically different from the ones seen before. There were only four candidates on stage, all were seated and none of them addressed the issue of Americans needing jobs. Here are some of the main quotes from the candidates.

Contrary to the warmongering claims recently made by the Israeli and U.S. government officials, President Shimon Peres believes Israel should not attack Iran in near future, officials close to Peres said.

The United States said on Wednesday it was still considering whether to support Japan's bid to join talks on a trans-Pacific regional free trade agreement, three months after Tokyo announced interest in the negotiations.

Who do you think won the Republican debate: Mitt Romney, Ron Paul, Newt Gingrich or Rick Santorum? Vote here to let us know. Tonight's debate in Arizona will likely be the last GOP primary debate before Super Tuesday on March 6, and the candidates' last chance to sway American viewers as they make their way to the voting booth.

U.S. President Barack Obama could not hide his singing talent as he loosened his collar and joined Blues greats BB King and Buddy Guy in singing a few lines from 'Sweet Home Chicago' at a White House blues performance on Tuesday, called Red, White & Blues.

Next year, six volunteers will spend four months living on a simulated Mars base for a NASA food study conducted by Cornell University and the University of Hawaii-Manoa.

We're all human beings, we all know or love somebody who's gay or lesbian so what the hell is that about?, said former U.S. Sen. Alan Simpson on Wednesday about Rick Santorum's view on same-sex marriage.

Of all the issues likely to surface at Wednesday night's Republican debate in Arizona, immigration is a fairly safe bet. That's because Arizona has come to embody the GOP's approach to immigration, in 2010 passing a controversial immigration law that became the model for similar bills passed by Republican-controlled legislatures in Georgia, Alabama, South Carolina and Utah.

A super PAC supporting President Barack Obama in his re-election campaign released its first ad Wednesday, blasting Republican Mitt Romney for his opposition to the program of government loans to rescue General Motors and Chrysler.

Graham’s statement that Christians are being murdered in Muslim nations is not entirely false – but he is greatly exaggerating the problem’s true dimensions.