Bill Kristol, son of Irving, names Sen. Marco Rubio (R-FL), Mitt Romney, Sen. Tom Cotton (R-AR) and others on his hypothetical shortlist of third-party candidates that he could run if Donald Trump becomes the Republican nominee. The “Weekly Standard” editor and self-styled neoconservative power broker is back to talking about a third party, declaring that a Trump victory in Indiana would force him to re-focus on his so-called “Latter-Day Republicans” independent ticket. A third party could help to split the vote on the Right and elect Hillary Clinton president, which would allow Kristol to stave off the Trump threat and...