Background: This is the latest in the back-and-forth that started September 22nd, when President Trump publicly fantasized about an NFL owner firing any "son of a bitch" player who would protest during the national anthem.

Worth noting: Trump didn't tweet on October 1 when three Miami Dolphins players kneeled for the American national anthem but stood for the British national anthem during a game at London's Wembley Stadium, per the Miami Herald.