 At the RNC, former President Trump announced on Truth Social Ohio Senator J.D. Vance will be his running mate. Ohio Governor Mike DeWine reacts. He's the future generation. I think that's very appropriate for the vice president. We've seen that happen many, many times throughout the history of this country. No word yet on who might be Vance's replacement in the Senate. What can the selection of Ohio Senator J.D. Vance mean for Ohio should he and the former president win the November election? Dr. Mark Caleb Smith of Cedarville University says.