Really? In February 2018 Trump tweeted, "I will be strongly pushing comprehensive background checks" and got talked out of that. During the debates with Clinton he promised to end gun ownership by people on the terror watch list. He apparently got talked out of that. Trump has supported Red Flag lists in the past, supported assault gun bans in the past, longer waiting periods in the past, and has had his position changed on all of them. This latest flirtation with gun control should be no different.
You provide no evidence that he “got talked out” of anything.