>> diesel fuel prices are through the roof and they're not stopping you can't get truck tires. even though i hate to raise my prices, i have to. >> reporter: if the signs are any indication, trump's support here has not wavered much how much do you think he's going to influence what happens? >> i think big-time. yeah, i think he's going to be a big influence. >> reporter: then there's delaware county, ohio, where trump's lead narrowed in 2020 and where we met tom fortunato. he has parkinson's and says the push to scrap obamacare and its protections for pre-existing conditions pushed him away from the gop. >> that would have been a tragedy for a lot of, lot of people. >> reporter: the midterms now a test for the party and its voters. >> in 2022, see what the reaction is and how far they've distanced themselves from president trump. >> reporter: but with many republicans hoping for mr. trump to make a comeback, could the gop bounce back without him dasha burns, nbc news, delaware county, ohio. >> and you can see more reporting in our "county to county" series all this week across our nbc news platforms.