 Day one of the Republican National Convention in Milwaukee, and already former President Trump has won enough delegate votes to clinch the nomination and won. Our top story is that we know who his vice presidential pick is. The 39-year-old Ohio senator would be the youngest vice president since Richard Nixon served under Dwight Eisenhower. J.D. Vance rose to national prominence in 2016 when he wrote his memoir, Hillbilly Elegy, about his upbringing in Appalachia.