President Trump went after Arizona Sen. John McCain on Twitter Thursday morning for criticizing a raid that ended in the death of a Navy SEAL, several civilians, and a destroyed V-22 Osprey tilt-rotor.

McCain has been critical of the first military raid ordered by Trump, refusing to join the White House line of calling the mission a success and instead deeming it a “failure.” He softened his language later but still called the said “not a success.”