Trump vs. Biden and North Carolina's senate between Thom Tillis and Cal Cunningham are pure tossup's. 50-50 odds on both the presidential and senate races. Although pulling the convention by no means dooms the two Republicans, it certainly doesn't help. What it might do is dampen some Republican support. A bit less energy and enthusiasm from what might and probably would have been.
It's high past time that we start electing Americans to congress and the presidency who put America first instead of their political party. For way too long we have been electing Republicans and Democrats who happen to be Americans instead of Americans who happen to be Republicans and Democrats.