President Donald Trump has said Caine wore the hat and expressed political support during a 2018 visit to Iraq.

Trump's Pick for Top US Military Officer Says Did Not Wear Pro-Trump Hat WASHINGTON (Reuters) - Retired Air Force Lieutenant General Dan "Razin" Caine, President Donald Trump's pick to be chairman ...

said on Tuesday he has never worn a pro-Trump "Make America Great Again" hat or any political merchandise. Members of the military are bound by the U.S. Constitution to remain nonpolitical.