BARACK OBAMA

Venezuelan President Nicolas Maduro on Tuesday asked parliament for decree powers in response to new U.S. sanctions, in a move opposition critics slammed as a power-grab.

Are 47 senators guilty of treason, or are they patriots standing up to what some call the tyranny of President Barack Obama?

People can visit whitehouse.gov/collegeopportunity to show support for the plan.

Ukraine says rebels are removing heavy weaponry from the front and concentrating it near Donetsk.

The new authority will help him defend against the "aggression" of new U.S. sanctions on Venezuela, Maduro said.

U.S. student loan debt has hit an all-time high, $1.1 trillion, and the average college student debt last year rose to $28,400.

Tor, an acronym for The Onion Router, is popular with all types of Internet users -- from political activists to child pornographers.

Arkansas Republican Tom Cotton defended warning Tehran about engaging in nuclear negotiations.

News that the CIA has tried to mimic XCode comes amid ongoing tension between the U.S. government and Silicon Valley.

The General Social Survey suggests that more firearms are now concentrated in fewer hands than they were in the 1980s.

U.S. District Judge Andrew Hanen in Brownsville, a city along the border with Mexico, has criticized U.S. immigration enforcement as too lax.

The latest sweep of fugitive immigrants was the fifth major operation by U.S. authorities since 2011.

The U.S. Senate on Monday confirmed former Google Inc executive Michelle Lee to head the U.S. Patent and Trademark Office, a position that has been vacant for more than two years.

An Obama spokesman and Democratic senators say Republicans are trying to sabotage the U.S.-led nuclear negotiations with Iran.

The next president may nix a potential accord with Iran, Republican senators said.

The president's disapproval rating is under 50 percent for the first time since he was re-elected in 2012.

Sen. Dianne Feinstein said she finds Netanyahu's attitude "humiliating, embarrassing and very arrogant" since a deal has yet to be finished.

Almost 600 people attended a public memorial, hosted by Kayla Mueller's family in Arizona, where she was honored for her life of service.

Read the full text as prepared for delivery of President Barack Obama's remarks on the 50th anniversary of Bloody Sunday in Selma, Alabama.

"Love and hope can conquer hate," the U.S. president said of the Selma marchers at an event marking the 50th anniversary of Bloody Sunday.

President Barack Obama will help mark the 50th anniversary of the beginning of a famous civil-rights march in Selma, Alabama.