It looks like Trump supports think crowd enthusiasm will mean additional votes.
https://www.foxnews.com/opinion/liz-peek-trump-wont-lose-his-job-due-to-impeachment-dems-will-have-hard-time-beating-him-in-2020
"And what a crowd it was; tens of thousands inside the arena chanting and cheering, while hundreds more stood outside hoping to get in. The energy in the room was extraordinary, especially considering that the president, buoyed by his fans, spoke for an exhausting hour and 45 minutes.
Forget the polls, forget the partisan impeachment inquiry; the enthusiasm of those Minnesota supporters reminds us how powerful Trump is on the campaign trail and how lackluster Democratic candidates look in comparison."
In 2016 in Minnesota, Hillary got 1,367,716 votes to Trump's 1,322,951.
Does a rally like that mean that Trump will find 700,00 new voters or 350,000 who voted for Hillary will now vote for Trump to flip the state to him?
I will admit that his support is as rabid as ever but have the numbers grown?