Trump nominates Callista Gingrich as U.S. ambassador to Switzerland, announces other picks

Writing on Truth Social, Trump wrote that he picked Gingrich to serve as U.S. ambassador to Switzerland, citing her previous ambassadorial experience in his first administration. Gingrich, and the other ambassador nominees, will need to be confirmed by the U.S. Senate.

"Callista graduated, with honors, from Luther College in Decorah, Iowa, with a Bachelor of Arts in Music in 1988," the Republican leader added. "Congratulations!"

Trump later wrote that he has nominated Mauricio Claver-Carone as a U.S. special envoy for Latin America. Special envoy positions are different from ambassador roles, as they are shorter and typically meant to fulfill a specific mission.

Trump cited "chaos and anarchy" at the U.S. southern border in his announcement about Claver-Carone.

"It is time to restore order in our own hemisphere," Trump wrote. "Mauricio knows the region, and how to put America's interests FIRST."

"He also knows the dire threats we face from illegal mass migration and fentanyl," he added. "As the State Department's Special Envoy, Mauricio will work tirelessly to protect the American People."

In a third post, Trump named Ken Howery, a co-founder of PayPal, as his pick for U.S. ambassador to the Kingdom of Denmark. Howery previously served as a U.S. ambassador to Sweden, and Trump wrote that he "served our National brilliantly" in that role.