The two world leaders had previously arranged to discuss the ongoing Ukraine crisis.
A rocket attack Tuesday in the Donetsk region, which killed 11 people, could have come from Russia, according to a military analyst.
Obama says Afghan election results should be honored and examined to ensure credibility.
Without Congress, Obama can do little to extend the meager family-leave benefits the United States offers it workers.
Drug smugglers are exploiting the distraction caused by thousands of Central American migrants for Border Patrol.
Nearly 100,000 Central Americans, including 52,000 unaccompanied minors, have crossed into the U.S. since October.
Biden's warning came as fighting continued in the east, which has killed 147 Ukrainian soldiers and wounded hundreds more.
Local police managed to keep protesters well away from the Estadio das Dunas where Vice President Joe Biden was present to watch the game.
The vice president appears intent on scoring a few diplomatic points as he visits the nation's somewhat estranged head of state.
Vice President Biden said the U.S. should use this opportunity to transition to energy independence and also renewable energy.
U.S. Vice President Joe Biden will make remarks at a New York City energy summit today at 1:45 p.m. ET.
Seychelles, an island nation with a population smaller than Davenport, Iowa, has become a haven for international corruption and money laundering.
The chief spokesman will be replaced by Josh Earnest, a special assistant to the president.
"Out-of-control government leadership must be stopped," the group says.
About 9,999,500 short.
Vice President Joe Biden also filed his annual financial disclosure statement, listing assets valued at about $230,000 to $850,000.
Fifty-seven percent hold a favorable opinion of Clinton, and 43 percent view her negatively, according to a Reuters/Ipsos poll.
Hunter Biden, son of Vice President Joe Biden, will join the top private gas producer in Ukraine.
Hunter Biden's business partner Devon Archer, who has ties to John Kerry, has reportedly been appointed to the company's board.
The president and actor Joel McHale send zingers to both sides of the aisle. Here are our 10 favorites.
Veterans groups and others continue to call for Obama to intervene in Phoenix, where some vets may have been victimized by a secret waiting list.
Ukraine has relaunched a security operation to crack down on pro-Russian armed groups, after an Easter pause.