White House national security adviser Mike Waltz is set to depart the administration, according to two people familiar with the matter on Thursday, marking the first major staff shakeup of President Donald Trump’s second term.

Waltz was on television as late as Thursday morning, promoting the administration’s agreement with Kyiv that would allow the U.S. to access Ukraine’s critical minerals and other natural resources.

In his first 100 days, President Donald Trump has taken a bludgeon to the government, civil society, civil rights laws, efforts at desegregation, foreign alliances, anti-corruption law and norms, the entire global economy,