The White House has been urged to fly its flags at half mast in the aftermath of John McCain's death.
The Republic senator and former presidential candidate died Saturday. Trump had ordered the White House flags to fly at half mast on Saturday evening.
But by Monday morning, the flags were back at full mast.
Top Republican Mitch McConnell and top Democrat Chuck Schumer have both said flags on all government buildings should be at half mast for the late senator.
Trump and McCain have feuded a number of times, with McCain being one of the few Republicans to to call Trump out on his America First policy. McCain said it was antithetical to the values of America.
He also voted against Trump's attempted repeal of Obamacare.
Trump, on the other hand, has said he didn't like people who were "captured".
The reference was to McCain, who spent over five years in captivity during the Vietnam war. He is thought of as an American war hero.
They continue to feud even after McCain's death.
Trump has not been invited to McCain's funeral.