Greg Corombos of Radio America and Jim Geraghty of National Review give House Speaker Paul Ryan credit for resisting the GOP rush to back Trump but believe Ryan will eventually do it. They also shake their heads as Rick Perry, who called Trump toxic and a cancer to conservatism, endorses Trump and even says he’s consider being Trump’s running mate. And they sigh as Trump not only won’t back away from accusing Rafael Cruz from being linked to Lee Harvey Oswald but defends the National Enquirer as a legitimate news source.