Think it might have been because Trump wore a MAGA hat the whole time and he “looked” different to people...? I dunno, I do know it was very windy at the rally and he wore a hat to help contain his hair. If people aren’t already aware Trump is/was bald and has either hair transplants or a really good hair piece. He’s claimed in interviews that it is his hair, so most likely he’s had a transplant (nothing wrong with that). You’d be surprised at the celebrities that have either really good hair pieces or have had “plug” - transplants.

Actors such as; Chris Pratt, Kevin James (had a piece during King of Queens) he has since embraced his baldness. Al Pacino, Matthew Mcconaughey, Ben Affleck, Tom Hanks among others all have either hair pieces or hair transplants.