He has worked at the U.S. Department of State, on the National Security Council, and as a foreign policy adviser to U.S. Senator John McCain. Today, U.S. President Donald Trump will sweep back into power promising a new American approach to the world.

Donald Trump’s tough stance on Colombia over migration sparked quick retaliation and an even faster concession. In this Quick Take, Ian Bremmer examines how countries are responding to Trump's assertive foreign policy.

The United States froze virtually all foreign aid on Friday. Marco Rubio, the secretary of state, sent an internal memo days after Donald Trump took office vowing an “America First” policy of tightly restricted assistance overseas.

President Trump began his immigration crackdown with a flurry of executive orders. Immigration experts say they lay out how he hopes to transform enforcement at the southern U.S. border and beyond.

Some of Trump’s actions have taken effect immediately. Others are facing legal challenges or will require additional funding.

President Trump has been threatening friend and foe alike with the foreign policy equivalent of a two-by-four. Colombia's president found that out the hard way over the weekend when he tried to stop U.