Lots of Trump signs and banners in western Colorado. My favorite is a 4X6 footer than reads:
TRUMP/PENCE 2020
No More Bullsh*t
We saw several Trump signs north of Niagara Falls a month ago and the sign you mentioned near Erie, PA.
At home here there are many Trump signs this time around. Last time a few came up just before the election. Most of the signs are large and even banners on big bales of hay. There is also net wrap made for hay bales now that is red, white, and blue. Love for America is great in the heartland.