 scheduled to speak on the importance of party unity. Ohio Senator J.D. Vance is going to be Donald Trump's running mate after getting the vice presidential nomination. Caroline Malone has more. Vance served in the U.S. Marine Corps, ran a successful business, and has even written a memoir, Hillbilly Elegy. The Trump campaign said he is a champion for the renewal of American manufacturing and has worked to defend and revive domestic automotive production.