Trump’s voters will all continue to vote for him. He only needs 0.5% of the people that were unconvinced and voted for Hillary to understand the huge accomplishments and change their votes. That a 1% shift to Trump, that seals the deal.
Also though Trump brought a lot of “nonvoters (people who have given up on the franchise!)” out of the weeds to vote. He didn’t do as well as I thought he would with that. I think that number will increase again. How much I have no idea.