BARACK OBAMA

News of the embargo came a day after economic sanctions were lifted against Iran for its nuclear program.

As the Democratic race tightens, Hillary Clinton and Bernie Sanders are set to face off in South Carolina.

WIth early leads in Iowa and New Hampshire mostly erased, Hillary Clinton wishes she had gone after Bernie Sanders sooner, according to her associates.

U.S. Sen. Bernie Sanders of Vermont has called on Michigan Gov. Rick Snyder to resign over the contamination crisis, which has been nearly two years in the making.

The measure would offer experienced workers who now make less than $50,000 annually a form of wage insurance, allowing them to replace one-half of lost pay.

Less than half of respondents in a recent poll felt his presence in the race would boost Hillary Clinton's chances of winning.

The temporary moratorium will remain in place until the government completes a review of coal mining's impact on the environment.

Two members of the California Guard admitted selling firearms to someone they thought represented a Mexican drug cartel, authorities said.

Secretary of Defense Ash Carter has proposed the very worst detainees at Guantanamo be sent to a U.S.-mainland facility.

Obama's immigration executive order has been blocked by a federal lawsuit by 26 Republican-led states.

Texas Sen. Ted Cruz and Donald Trump stood out and traded insults Thursday night, while Chris Christie and Marco Rubio turned in strong debate performances.

Sparring between Texas Sen. Ted Cruz and real estate mogul Donald Trump took center stage Thursday.

Republican candidates lashed out at the president's initiatives on immigration and guns, claiming they were unconstitutional and illegal.

As millions of American school children learn every year, the U.S. Constitution adopted in 1787 states that only a "natural born citizen" of the United States may serve as president or vice president.

During Thursday's early Republican debate, the candidate said FBI data show American Jews face more threats than American Muslims.

Roughly 70 percent of firearms seized from Mexican drug traffickers can be traced to the United States, a U.S. government report says.

At this point during her previous presidential run, the Democrat was doing much better in national polls.

The anti-abortion group released a series of undercover videos that embroiled Planned Parenthood in controversy.

The South Carolina governor said she misspoke when talking about Republican presidential candidates Sen. Marco Rubio and former Gov. Jeb Bush, both of Florida.

The liberal magazine has endorsed only two other candidates in the Democratic primaries in its 150-year history.

The World Heath Organization announced Thursday that Liberia was free of the deadly virus but warned that "more flare-ups are expected."