House Foreign Affairs Chairman Eliot Engel (D-N.Y.) and Senate Foreign Relations ranking member Bob Menendez (D-N.J.) announced an investigation Saturday into President Trump’s Friday night ouster of State Department inspector general Steve Linick.

Why it matters: Secretary of State Mike Pompeo recommended that Linick, who was reportedly investigating Pompeo for allegedly misusing agency staff for personal tasks, be removed from the position, a White House official told Axios. President Trump agreed.

What they’re saying: “President Trump’s unprecedented removal of Inspector General Linick is only his latest sacking of an inspector general, our government’s key independent watchdogs, from a federal agency,” Engel and Menendez wrote on Saturday. “We unalterably oppose the politically-motivated firing of inspectors general and the President’s gutting of these critical positions.”