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.

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.

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.

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.

A federal judge temporarily blocked the president's effort to end birthright citizenship, calling it "blatantly unconstitutional" after multiple states tried to stop it in court. On Capitol Hill, though,

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.