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The U.S. has put sanctions on the Venezuelan president and labeled him a "dictator." Nicolas Maduro's tweet Monday came not long after he was uninvited from a summit of Western Hemisphere countries.

Pundits have speculated that the famously strained relationship between the president and the former presidential candidate could mean a future Sen. Romney would be a thorn in Trump's side.

Among the changes: Major League Baseball will impose stricter limits on mound visits, and commercial breaks will be shorter.

The Fox News host sought to rebuke the NBA All-Star for "talking politics." James said the flap created awareness on the NBA's "best weekend": "I get to sit up here and talk about social injustice."

In solidarity with their peers attacked in last week's school shooting in Florida, D.C. area students called for gun control reform Monday. Hundreds more demonstrations are expected in coming weeks.

The Trump administration could give companies permission to set off sonic explosions to explore for oil and gas deposits. Scientists say this could seriously harm marine life.

In a heavily redacted report of its 2011 inquiry into the hiring of prostitutes in Haiti, Oxfam said three staff members physically threatened a witness interviewed by investigators.

Steeped in cultural significance, the film opened to $192 domestically, the biggest February debut ever, said Disney. It's also already the highest-grossing film by a black director.

Trump's flurry of weekend tweets about the Russia investigation and the latest school shooting drew condemnation from both sides of the aisle.

The national security adviser broke with what had been Trump's script about the investigation into Russian interference. Trump said McMaster "forgot" to say election results weren't impacted.