GEORGE WILL, CONSERVATIVE COLUMNIST: It turns out John Donne was wrong when he said no man is an island. Trump is an island and delighted to remain so evidently. This week Governor Hogan of Maryland joined the list of those who said -- CHRIS WALLACE, FOX NEWS SUNDAY: A Republican governor. WILL: A Republican governor. Jeff Flake, a Senator from Arizona, a Republican who is resistant to Donald Trump points out that Trump got 13 million votes in the primaries. He'll probably need 65 million votes to win the presidency. Where is he going to get the other 52 million? That's a lot of votes. Donald Trump's assumption clearly at this point is that running in a primary against 16 opponents is pretty much the same as running in a protracted general election against one well-funded Democratic machine. That's unlikely because what the Democrats have is the get out the vote mechanism and that this is going to be a mobilization election and not a persuasion election. And there aren't that many Americans waiting to be persuaded on either side. So if he doesn't have a get out the vote mechanism, what does he have? What he has is crowds. And like a real amateur in politics, he seems to confuse the enthusiasm of the crowds in front of him at the moment in the high school auditorium with the larger electorate. Whereas in fact crowds are definitionally not a representative selection of the American people.