Sunday on ABC’s “This Week,” Weekly Standard editor Bill Kristol commented on Republican presidential nominee Donald Trump’s chances in the general election and said that he was “afraid” presumptive Republican presidential nominee Donald Trump could win.

Kristol said, “You know, it’s so interesting watching the interviews with Paul Ryan and Paul Manafort. I’ve known Paul Ryan for 20 years. I like him very much. And it was painful to watch, I’ve got to say. I mean, the people who are now rationalizing supporting Donald Trump when they are proud to be representatives of the party of Lincoln, a protege of Jack Kemp, it’s going to be a horrible four or five months for the Republican Party. People do not understand how much damage, from my point of view, Donald Trump will do. Having said that, the other thing I was struck by watching Paul Manafort, they have a clear message. I think people are totally underestimating Trump’s chance of winning. That doesn’t make me happy, but Manafort, you know, they’re going to slough aside all the insults, all the terrible things Trump has said and say do you want change or not? And if it’s only Trump or Hillary Clinton in a change election, you can have a pretty flawed change messenger and I’m afraid he could win.”

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