 Donald Trump has announced that Ohio Senator J.D. Vance will be his running mate in the race for the White House. Vance, who first gained fame as author of the book Hillbilly Elegy about growing up poor in working-class America, has only been in politics for two years. The 39-year-old first-term senator joined the Marines out of high school, graduated from Ohio State, then Yale Law School. Before finding his way to D.C., he was a principal at Peter Thiel's venture capital firm and therefore has ties to wealthy donors.