This is fodder for WSJ columnist James Taranto's "everything is seemingly spinning out of control" file. Howard Dean has declared that we'll have to be "more humble" about Donald Trump's prospects and that he will "have to stop making fun" of him for now.

What's got Dean doing a 180 on Trump? Not just the latest polls, which include one showing Trump trouncing Jeb and Rubio in their home state of Florida. Above all, it was the experience of viewing, on today's Morning Joe, a stunning focus group of New Hampshire Republicans who were uniformly and enthusiastically pro-Trump, saying things like "honest; Reaganesque; one of us; we could be a proud America."

Jonathan Capehart tried to pour cold water on Trump fever, suggesting voters will cool once they hear his specific proposals on various issues, but Dean was having none of it, saying "People do not vote on the specifics, the white papers that candidates write, they're all for editorial boards and smart reporters and inside the beltway people. People vote on what Joe is talking about, on guts, on their feel for people."

"Stunning" was the word of the day on the Morning Joe set in reaction to the focus group, conducted by Bloomberg's John Heilemann.