BARACK OBAMA

Actor Martin Sheen has played a president on The West Wing and now he's standing up for one in a new video by the Democratic Congressional Campaign Committee that accuses Republicans of trying to end Medicare and siding against President Obama because they want him to fail.

Of 505 respondents, 77 percent believe Iran presents a grave threat to Israel's existence and 60 percent think only a military attack on Iran will stop its nuclear program.

As heads of state gathered for talks, demonstrators chanted: No nukes Asia, no nukes Korea, No nukes [America], no nukes anywhere! Many cited the disaster at power plants hit by the March 2011 earthquake and tsunami in Japan as proof of nuclear power's inherent risks.

The American Petroleum Institute launched a new ad campaign to battle against a U.S. Senate vote to eliminate oil tax breaks.

More than $1 trillion in tax breaks are embedded in the U.S. tax code, but a new report highlights some of the difficulties in eliminating some breaks and finding savings.

Ronald Reagan used to refer to America as a “city on a hill.” He was right; America (at her zenith) was a beacon to the world.

The Trayvon Martin shooting case is only gaining more and more attention, and as the national spotlight continues to shine on Sanford, Florida, the White House finds itself having to defend the emotional remarks President Barack Obama gave on the topic last week.

Gilani will also meet directly with President Barack Obama to try to repair the fractured ties between Pakistan and the U.S.

Every once in a while, the media gets a taste of off-the-cuff interactions between world leaders because a microphone is left on.

The American Petroleum Institute, the country's largest oil industry backed trade group, slammed the U.S. Senate as it readies to vote to eliminate tax breaks for oil companies.

Even as Americans are divided by partisan lines, more than three-quarters say the Supreme Court justices' political beliefs will influence their decision when ruling on the constitutionality of the Affordable Care Act.

The Supreme Court will begin a three-day review of the Affordable Care Act, known to some as either the health care reform or Obamacare, on Monday, which will go down in history as a landmark case, perhaps the most monumental in more than a decade. Justices will decide whether the mandate, which would require all Americans to buy health care, for the 2010 Affordable Care Act is constitutional or not. Here are 10 things to know about the landmark Affordable Care Act case.

The pizza magnate's post-campaign project, Cain Solutions, published a new web ad Monday that includes the same creepy, unsmiling little girl from his last commercial and yet another animal metaphor. It's supposed to be about how the current tax code is killing small business, but it's kind of hard to get past the bunny being catapulted into the air and shot.

A GOP presidential candidate is lashing out at the media, and it's not Newt Gingrich.

Leading up to the nuclear summit in South Korea this week, Obama and Hu both expressed their serious concern about the launch, which was first described by North Korea as a peaceful launch of an earth observation satellite.

Annan has already received support for the plan from Russian president Dmitry Medvedev and foreign minister Sergey Lavrov

The U.S. Supreme Court on Monday will consider its own authority to consider a lawsuit challenging the Affordable Care Act. Additional oral arguments set for Tuesday and Wednesday will delve into whether the 2010 health care law is constitutional.

Russian President Dmitry Medvedev extended complete support to the UN-Arab League envoy in Syria, saying that Kofi Annan's resolution represented the last chance for preventing the violent insurgency from turning into a civil war. Medvedev's strong message to Syrian President Bashar al-Assad came close on the heels of US President Barack Obama announcing his plans to send non-lethal aid to the Syrian opposition.

South Korea wrested one-upmanship from the belligerent North on Monday by issuing a stern warning that it might shoot down a rocket that Pyongyang is planning to launch next month.

Obama holds out prospect of cuts in US nuclear arsenal as he tries to rally world leaders against threat of nuclear terrorism.

President Barack Obama, visiting South Korea, called on the Communist North Sunday to call off a planned rocket launch, and warned that food aid in return for disarmament would be at risk.