Senate Democrats up for reelection this year in deep-red states face a nightmare decision on how to handle Supreme Court nominee Brett Kavanaugh. Vulnerable Democrats are hoping Republicans will force him to withdraw his nomination, allowing them to avoid politically divisive votes. The Democrats in the toughest position are Sens. Heidi Heitkamp (N.D.), Joe Donnelly (Ind.) and Joe Manchin (W.Va.). Heitkamp and Manchin are undecided, and both are seeking another six-year term in states that Trump won by double digits in 2016. Donnelly is in much the same boat but said on Friday that he would vote ‘no’ on Kavanaugh....