No it’s not wrong nor illegal.
Supreme Court rules in 2018 that one may wear political messages while voting.
FReepers, wear your MAGA gear proudly tomorrow
Hmmmm...
Good to know. Print that out and bring it with you!
Good to know that you can do this legally at your polling place.
However, I would caution against it, if you live in a blue area.
In those places, you don't know who is running the polling. Better to NOT make it obvious who you support, (by wearing gear, red exc..).
IMO- this might increase the odds of your vote being counted: stay a little incognito at the voting booth.
But once you're done, and away from the voting area, by all means, break out your gear and MAGA on!😎