Tensions between the U.S. and China have been rising for some time now, and Rubio's appointment has widely been seen as a sign that Trump plans to maintain a hard line on China during his second term. One of the most outspoken China hawks in Washington, Rubio has introduced several bills targeting the Chinese Communist Party.

U.S., Arab and Israeli officials all tell CBS News that Israel and Hamas have agreed in principle to a ceasefire and hostage-release deal with final details being hammered out by negotiators in Qatar. CBS News foreign correspondent Ramy Inocencio has details on the potential agreement.

Rubio and Trump have put aside past acrimony to make the Florida lawmaker the least controversial in an unusual slate of Cabinet picks.

A veteran of the Foreign Relations Committee, Rubio is widely seen as one of Trump's least controversial Cabinet picks and is expected to sail through the nomination process.

Senator Marco Rubio, President-elect Trump's choice for Secretary of State, addressed multiple foreign policy challenges during his confirmation hearing on Capitol Hill. If confirmed as America's top diplomat, Rubio said he wants to avoid past mistakes where the U.S. prioritized the global order over national interests.

Johnson sent shockwaves around Capitol Hill when he decided to oust Rep. Mike Turner, R-Ohio — a staunch NATO supporter who has aggressively pushed for U.S. aid to Ukraine — as chair of the House Intelligence Committee and replace him with Rep. Rick Crawford, R-Ark., a conservative who voted against the most recent Ukraine aid package.

Many of Trump’s nominees to serve in Cabinet and advisory roles are slated to appear this week for hearings before Senate committees, a key test for many of them.

Former Florida Attorney General Pam Bondi is vying to become the U.S. Attorney General, while Sen. Marco Rubio looks to lead the State Department.

The Trump administration has shut down processing centers in Central and South American countries that allowed migrants to apply to come to the United States legally.

President Donald Trump notched two victories on Thursday as he pushed to get his top officials in place. He also faced new legal challenges.

The Houthis, an Iran-backed rebel group that controls north-western Yemen, have fired at US ships dozens of times. The executive order signed by Trump on Wednesday says the Houthis are responsible for deadly attacks in Yemen, Saudi Arabia and the United Arab Emirates.