Democrats are slamming the Trump administration after firing the country’s senior military officer as part of a major shake-up at the Pentagon on Friday night, alleging that the move was politically motivated.

The removal of Gen. C.Q. Brown and other top officers has deepened concern among Trump’s critics who fear he intends to impose his politics on the institution.

Sen. Jack Reed (D-R.I.) offered President Trump a fiery rebuke late Friday, admonishing the president for the administration’s moves to overhaul the Defense Department, which he says are rankling the rank-and-file and poisoning the military’s “ethos.