LOUISVILLE, Ky. — In a late Friday Truth Social post, President Donald Trump finally delivered the endorsement that each of the top GOP candidates in the race to replace Sen. Mitch McConnell badly coveted. And it went to U.S. Rep. Andy Barr, whom Trump called a "proven political winner" who is "always a vote we can count on because he knows what it takes to get things done." Some Kentucky political insiders say this could seal the Republican Senate primary in Andy Barr’s favor. "It's over," former Kentucky Secretary of State Trey Grayson, a Republican and former U.S. Senate candidate...