He also said booing at the Dallas game Monday night when the team dropped to its knees was the "loudest I have ever heard".
President Donald Trump insisted on Sunday that an intensifying feud with National Football League players who won't stand during the USA national anthem to draw attention to social injustice, has "nothing to do with race".
At a rally in Alabama Friday night, Trump said coaches should get the "son of a bitch" off the field if a player continued to kneel.
New England Patriots owner Robert Kraft is the latest of National Football League executives to condemn President Donald Trump's speech in which he called for players that sit or kneel for the anthem to be fired.
While sitting around a table at American Legion Post 490 on Monday, a group of veterans explained what the National Anthem means to them.
Kaepernick, who is unsigned this season, began dropping to a knee during the national anthem a year ago in demonstration against police brutality and injustice. The team stood with arms interlocked as Jordin Sparks sang the anthem. We stand for the playing of the national anthem, as do most NFL players and fans.
In a tweet sent right before Sunday's games, the president said "NFL attendance and ratings are way down".
In addition, 53 percent of Americans do not think it is appropriate for the president to comment on "how the NFL and its players conduct themselves during the national anthem". It gathered responses from 1,622 people, including 628 Democrats, 583 Republicans and 919 people who watched a football game at least a few times during the season. Dinesh D'Souza, a conservative political pundit, called for fellow opposers to boo the teams and players that refuse to stand during the anthem.
"To me that was a very important moment", Trump said a Rose Garden presser with Spain's prime minister. Continuing with his previous theme and rhetoric, the commander in chief accused those who protest the national anthem of being "disrespectful" the United States and those who gave their lives for freedom.