I would say there are two factors.
1 - In 2016 there were a lot of Bernie Bros who voted Trump to get back at the Hillary camp. Will they stick this time?
2 - Promoted by the Trump campaign, so grain of salt, there could be a large Democrat contingent coming over. But we have Never-Trumpers, does it even out?
I do not believe that other than a few high profile people that there really are more than a tiny percentage of people who are still “Never-Trumpers”. Most of the people who said that they were last time have fallen into line because President Trump has proven with his policies and court appointments that he more a man of his word than most Republicans.
“1 - In 2016 there were a lot of Bernie Bros who voted Trump to get back at the Hillary camp. Will they stick this time?”
I don’t see why, now that they have a clear path to their socialist utopian dreams if the demented dimwit and Kameltoe win.
Biden beat bernie again.
But we have Never-Trumpers, does it even out?
...and all 5 of them work at the Lincoln Project.