Seemingly nothing can tarnish Ryan's reputation. But the Trump endorsement might just do the trick.

Some Bernie Sanders voters vow they'll go Green in November—unless the threat of a President Trump proves too overwhelming.

Why Bill Kristol's bewildering pick for a #NeverTrump presidential candidate makes a certain amount of sense.

And if Democrats use it effectively, it will be his undoing.

So far, the heartening answer is no.