He will be found not guilty there, by reason of Trump Derangement Syndrome.
There is a small chance that one juror might hold out for a guilty verdict but you are likely right. And if that were to occur, I think much darker things might follow. There are a lot of people who would be upset, to say the least, that a Trump-hating jury would let a would-be assassin walk free.
The defense team may try to get him off on some sort of technicality so a Not Guilty will be more palatable.