In a potential boost to Democratic hopes to retake the Senate majority in next year's elections, Sen. Johnny Isakson (R-Ga.) announced Wednesday that he would resign his seat at year's end, leaving the Georgia GOP defending two seats in 2020.

The emergency threatening part of the world’s largest rainforest is proof that offsets are too risky to count on to cancel out corporate pollution, and that the Amazon needs help without strings attached.

Donald Trump spent a weekend meeting with world leaders largely trying to sell them on gathering next year at one of his luxury properties--but otherwise largely ineffective, according to a variety of political observers.

A national network of progressive activists is looking to take an active role in a Democratic effort to eliminate the filibuster in the Senate.

rump’s new immigration policy applies more harshly to families of U.S. citizens in the military than to families of noncitizens in the military. Experts think it’s an error that suggests officials are pushing policies even they don’t fully understand.

Tech moguls like Jeff Bezos and Eric Schmidt have gotten unprecedented access to the Pentagon. And one whistleblower who raised flags has paid the price.

Products won exemptions from the U.S. Trade Representative for “health, safety, national security and other factors,” but the criteria remain unclear.

It was a day in which the president of the United States backed out at the last minute from a diplomatic trip to Denmark because his overture to purchase Greenland. He reversed himself--and then unreversed himself--on serious economic matters. And, finally, he referred to himself in Biblical terms as "The Chosen One." What does all of that erratic behavior mean?

Jay Inslee, the governor of Washington State and former congressman who made the fight against climate change the central point of his campaign, dropped out from the race for the Democratic presidential nomination.

A long-delayed safety standard for children’s car seats in side-impact crashes is being pushed back further. The industry is arguing that the government should not act without also updating its other safety standards for car seats.