President Trump went after football star Marshawn Lynch after photos of Lynch standing for the Mexican national anthem but not the American one had surfaced online.
The president took to Twitter to air his distaste for the running back's actions:
This is just the latest in the long string of outraged tweets the president has...er...tweeted.
Trump has butted heads with the NFL over the athlete's decisions to kneel in protests during games, often calling for the league to fire players who do so.