Sen. Ruben Gallego (D-AZ) called the Pentagon’s investigation into his seatmate, Sen. Mark Kelly (D-AZ), “f***ing insane” in a statement.

The Department of War announced a “thorough review” of Kelly, a retired naval officer, on Monday following his participation in a video with six other Democratic lawmakers in which they encouraged service members to disobey unspecified “illegal orders.” In response to the War Department’s announced investigation into Kelly, Gallego took to X to defend his fellow Arizona senator.