Hillbilly Elegy author J.D. Vance defeated Democratic U.S. Rep. Tim Ryan for an open U.S. Senate seat in Ohio on Tuesday in a blow to Democrats who viewed it as one of their best chances nationally to flip a seat.
Vance, 38, a venture capitalist and newcomer to politics, benefited from a last-minute push by Donald Trump. The former Republican president had endorsed Vance in a crowded, ugly Republican primary — despite Vance having once declared himself a…