It is the fourth time the parties have extended the terms of the interim deal, which was struck in November 2013 and provided Iran with limited sanctions relief in exchange for a halt to the production of uranium enriched to a purity level of 20 percent.
President Barack Obama pledged to increase support for the moderate opposition in Syria's civil war and said the U.S. needs to do more to prevent attacks and combat Islamic State efforts to recruit followers.
A dispute over U.N. sanctions on Iran's ballistic missile program and a broader arms embargo are among issues holding up a nuclear deal between Tehran and six world powers.
The United States returned to the pinnacle of women's soccer with a 5-2 crushing of Japan in Sunday's Women's World Cup final at the end of a riveting tournament that pushed the sport into new territory.
Federal authorities are stepping up security and asking Americans to be vigilant ahead of the holiday weekend.
U.S. authorities are pursuing hundreds of active counter-terrorism investigations embracing all 50 American states.
The previous Cold War enemies agreed to reopen embassies in each other's capitals, with the Cubans saying that could happen as soon as July 20.
Iran and six world powers ramped up negotiations after accepting they would miss a June 30 deadline for a nuclear deal.
Eurozone stocks, low-rated bonds, and the euro weakened as Greece looked set to default on repayments and plunge deeper into financial crisis.
A number of Cuba initiatives are pending in the Senate, including a bill to remove the travel ban on Americans and rescind the decades-old U.S. economic embargo.
Iran, the U.S., Russia, China, France, Britain, and Germany are trying to end a more than 12-year standoff over Tehran's nuclear program.
U.S. intelligence officials say China is the top suspect in the massive hacking of a government agency that compromised the personnel records of millions of Americans.
Legislation vital to securing the largest U.S. trade deal in decades was passed, advancing President Barack Obama's efforts to strengthen economic ties around the Pacific Rim.
The changes are aimed at becoming more sensitive to the needs of families of hostages held abroad.
The bid to boost economic ties with Asia is poised for a win as a six-week congressional battle comes to an end.
The world's two biggest economies are holding annual talks aimed at maintaining working relations in spite of rising tensions.
In an address in Berlin on Monday, U.S. Defense Secretary Ash Carter accused Moscow of trying to re-create a Soviet-era sphere of influence.
In the first papal document on the environment, Pope Francis demands swift action to save the planet, urging leaders to hear "the cry of the earth and the cry of the poor."
Al Qaeda in Yemen said its leader was killed in a major blow against the global militant group's strongest branch.
The House blocked legislation to "fast-track" trade deals through Congress as lawmakers defeated a related measure on aid to workers hurt by trade.