Washington, United States Republican J.D. Vance, the best-selling “Hillbilly Elegy” author backed by former president Donald Trump, won a contentious race for Ohio’s open US Senate seat Tuesday, networks projected, in a disappointment for Democratic President Joe Biden. The win for the Republicans does not represent a gain of a seat in the 100-member Senate, as Vance and rival Tim Ryan, a Democratic congressman, were vying to replace retiring Republican Rob Portman. […]