President Trump on Thursday night heaped praise on newly minted Indiana GOP Senate nominee Mike Braun while escalating attacks on his opponent, incumbent Sen. Joe Donnelly (D-Ind.). During a campaign rally in Elkhart, Ind., Trump lauded Braun as an effective businessman and someone who will be a loyal backer of the president’s agenda while characterizing Donnelly as simply awaiting marching orders from Senate Minority Leader Charles Schumer (D-N.Y.). “This November Indiana will face an important choice: you can send a really incredible swamp person back to the Senate like Joe Donnelly, or you can send us a Republican like Mike...