[0] https://www.washingtonpost.com/news/the-fix/wp/2016/02/26/do...
[1] https://www.nbcnews.com/politics/donald-trump/fact-check-tru...
[2] https://www.washingtonpost.com/politics/2019/06/15/no-braine...
[3] https://www.nbcnews.com/politics/donald-trump/trump-says-nfl...
The anger at the kneeling protestors is especially revealing considering the debate centered around whether the private NFL could interfere with the expression of the players.
As for the gun issue, nobody in the gun crowd liked that comment from him. Some have even argued they're not going to vote for him going forward as a result. But when the alternative is people who literally believe that the second amendment doesn't exist, doesn't say what it says, and don't believe that the SCOTUS rulings that have come down on it have any effect, what choice do they have?