Donald Trump has endorsed conservative Rep. Ted Budd in North Carolina’s critical Senate race, the former president's first foray into an open primary in a battleground. That state's retiring Republican senator has other ideas. Sen. Richard Burr praised North Carolina's former GOP governor, Pat McCrory, as “the only one in the race that can win the general election" for the seat Burr is vacating. “Pat McCrory has a commanding advantage," Burr added. Behind the scenes, Burr is even less subtle about next year's Senate battle. One Republican senator said Burr is “telling everyone that McCrory is the only one that...