In the video, Obama is shown being killed by Jihadi John, the masked man with a British accent who has beheaded several hostages held by the Islamic State in online videos.
Latin American leaders praised Obama for ending decades of U.S. hostility towards the communist-ruled island.
Despite some who say he's "delusional" U.S. Secretary of State John Kerry defended his presentation of a framework agreement on Iran's nuclear program.
It's not 2008 anymore: The economy, Iraq, becoming a grandmother and getting older might benefit Clinton's 2016 campaign.
The former U.S. secretary of state made her 2016 intentions known in a simple email then loaded up the campaign bus and headed for Iowa.
Jeb Bush criticizes Obama-Clinton policies in a new video the same day Hillary Clinton supposedly will announce her candidacy for the U.S. presidency in 2016.
No. 1: The word "genocide" is the subject of fierce debate.
U.S. President Barack Obama also described Hillary Clinton as a "formidable candidate in 2008" and an outstanding secretary of state.
President Dilma Rousseff accepted President Barack Obama's invitation nearly two years after she canceled a trip to Washington.
Wayne LaPierre appeared to refer both to President Barack Obama's race and to likely presidential candidate Hillary Clinton's sex.
At the Summit of the Americas, President Barack Obama became the first U.S. head of state to meet with his Cuban counterpart since 1956.
U.S. Vice President Joe Biden says the approach would enable a program to offer two extra years of schooling to “responsible students” tuition-free.
The move comes as Tunisia struggles to secure its porous borders with Algeria and Libya that are used by militants and smugglers.
The issue of U.S.-Cuba relations is expected to take center stage at the Summit of the Americas conference.
The president and first lady reported their lowest income since he was an Illinois state senator.
President Evo Morales uses the Summit of the Americas in Panama as a stage for criticizing the U.S. leader's policies.
Six ex-detainees resettled in Uruguay are facing a tough time being something they aren't used to: free men.
Reacting to President Obama's concerns about China's "size and muscle," a Chinese spokeswoman said it was clear which nation throws its weight around.
The talks between U.S. Secretary of State John Kerry and Cuban Foreign Minister Bruno Rodriguez marked the first high-level meeting in over 50 years.
President Obama said Thursday the United States is concerned China uses its "sheer size and muscle" to push around smaller countries in the SouthChina Sea.
President Barack Obama said on Thursday that the U.S. State Department had completed its review of whether to remove Cuba from the list of countries that sponsor terrorism but that he was waiting for a recommendation from his advisers.
President Obama expresses doubt about a "cure" for homosexuality, but supporters say the option should be available to gay youths.