Trump needs to visit red parts of blue states?
It's my observation that the "Coattails" are longer and wider in National elections.
But yes, campaigning in Red states and in the Red districts of Blue states is important.
If I were the president, I'd put together an "Election Special" aircraft fleet and get out of Washington! Ignore the distractions by going directly to the voters. Might even win the so-called "popular vote!"
if those freshman GOP in ‘21 are not good enough, then the ‘22 redistricting & reapportionment will knock them out as history shows.