It isn’t already?
At some point it would end up as a test of the prestige of the Court and Congress vs. the Executive. Trump believes (erroneously, as usual) that in a showdown between him and the other Branches the military and law enforcement would take his side regardless of the black-letter law of the Constitution.
Very, very doubtful.
And even more likely Trump voters. But it’s dangerous to use too broad a brush to paint us olds (and yes, I is one.)
This one might get through on the merits. Yes, it would benefit Democrats against vote suppression but it would also help out some of Republican base e.g. the really rural voters a long way from much of anything.