Completely unscientific and probably means nothing but on our drive from Billsburg to Myrtle Beach yesterday we only saw 1 Trump flag, no signs.
We drove mostly secondary routes thru Southside Va, North and South Carolina where you would normally expect to see them.
Lots of yard signs promoting local candidates .
edit
Heading out of MB now on 17, just passed a “vape” shop with lots of pro Trump signs and flags. With a going out of business sign