Updated March 13, 2018: President Trump announced that he had ousted Secretary of State Rex W. Tillerson and intends to replaced him with Mike Pompeo, now the C.I.A. director.

Mr. Trump also named Gina Haspel as his choice to become the next C.I.A. director.

WASHINGTON — For all his political and bureaucratic stumbles, Secretary of State Rex W. Tillerson has been a steady voice of moderation in how the Trump administration engages with the world.

That voice will be lost if, as expected, President Trump replaces Mr. Tillerson at the State Department with Mike Pompeo, a hard-line former Republican congressman who has brought an avowedly political edge to the Central Intelligence Agency, where he is the director.

Mr. Pompeo, a West Point graduate best known for savaging Hillary Clinton’s response to the deadly attack in Benghazi, Libya, when she was secretary of state, has called for the Iran nuclear agreement to be ripped up, played down talk of Russia’s interference in the 2016 election and suggested that regime change in North Korea would be a welcome development.