President Donald Trump got a rough welcome at the Commanders stadium after flying in on Air Force One ... the crowd loudly booed him as soon as he popped up on the jumbotron.
Trump became the first sitting POTUS in nearly half a century to attend a regular season NFL game as the Detroit Lions visited the Commanders in Landover, Maryland Sunday ... but, that fun historical fact didn't impress fans.
A chorus of boos rang out when his image when he was shown in the first half ... and later when the announcer introduced him by name at halftime and while he read an oath for military family members to recite during a game break.