If the President can't fix the illegal invasion, he could do something about them voting. Fix the voting system so it is fair and doesn't allow illegals to vote. Then work on the invasion and afterwards work on deporting those already here.
Trump is insane if he thinks he can sign off on any gun control and win the next election. Despite the idiots here outting themselves as being for Red Flag Laws and Universal Background Checks, either one will sink his chances in the next election and probably secure a Win for the Dems.
Trump is pretty much doing great on the economy. IMO he can survive the lack of a wall but he has to do something instead and he can't support/sign any gun control.
