BARACK OBAMA

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.

Republican presidential hopeful Rick Santorum may be surging in the polls ahead of Mitt Romney just a week before the Arizona and Michigan primaries, but that has come along with intense media scrutiny and the discovery of rather controversial comments.

Aides for Gov. Robert McDonnell say he is no longer committed to signing the legislation.

Republican voters are split between supporting Mitt Romney and Rick Santorum, but neither candidate would unseat President Barack Obama in a general election, a new poll indicates.

In this election season, the auto industry is one big political football. General Motors Co., however, wants to get out of that mix. So when Newt Gingrich attacked GM's Chevrolet Volt as an Obama car in a stump speech last weekend because you can't put a gun rack in it, GM fired back on Tuesday.

President Barack Obama will join former first lady Laura Bush Wednesday celebrating the start of construction for the National Museum of African American History and Culture which will showcase the history of black life, art, and culture.

The U.S. Food and Drug Administration said it will resolve a potentially life-threatening shortage of two leading cancer drugs by allowing one of them to be imported from abroad and rushing approval for a new manufacturer to make the second.

Rick Santorum continued to defend comments from his past on Tuesday, this time from a 2008 speech about Satan attacking America.

Under a corporate-tax overhaul to be detailed Wednesday, U.S. companies would be forced to cede a number of loopholes and subsidies, while those with overseas operations could face a minimum tax on their foreign earnings.