People forget things SO FAST! Within 48 hours of having had rallies in those states, the MSM will have so much nonsense brought against Trump, that people in those states (non hardcore Trump supporters), will almost immediately forget he was even there.
I’m sure he will be in those swing states NON STOP as we get closer to August, when the convention is over. Anyway, I think what you’re saying is good, but I don’t think it accounts for how quickly people forget things.
MSM don’t forget and bring up stale crap all the time to remind their mindless leftie viewers