Specifically, where a Republican President (at the time Republican Governor) and the NRA supported the gun control. And yes, because of racist bigotry.

https://www.history.com/news/black-panthers-gun-control-nra-support-mulford-act

https://www.cnn.com/2021/08/28/us/race-politics-gun-control-the-price-of-freedom/index.html

https://www.npr.org/2021/06/02/1002107670/historian-uncovers-the-racist-roots-of-the-2nd-amendment