Today's installment of campaign-related news items from across the country.
* Though a Quinnipiac poll in Iowa last week showed Bernie Sanders inching past Hillary Clinton, a new PPP survey in the state found Clinton with a 21-point lead in Iowa, 43% to 22%. Vice President Biden was third in the poll with 17%.
* On the national level, a new poll from Bloomberg Politics shows Clinton leading the Democratic field with 33%, followed by Biden's 25% and Sanders' 24%.
* Ben Carson's super PAC said yesterday that it received a "surge of donations" after the Republican said Muslims should be disqualified from the presidency. “We sent out an email to Carson supporters, and we’ve never had an email raise so much money so quickly -- it’s unbelievable," the super PAC's chairman boasted.
* In related news, Carson is now trying to argue that his anti-Muslim comments were misquoted by the media. He's completely wrong.
* Scott Walker's support in the polls was minuscule, but his network of financial supporters was considerable. At this point, it appears Marco Rubio is "set to inherit" about two-thirds of Walker’s “big-donor fundraising apparatus."
* In case Donald Trump's various feuds weren't exasperating enough already, the Republican presidential hopeful is now apparently threatening the Club for Growth.
* Mike Huckabee said this week, “I know that most politicians say we want everyone to vote, I’m gonna be honest with you, I don’t want everyone to vote." The GOP candidate said there are "stupid" Americans who should "stay home."
* And it turns out that Walker's bid for national office lasted just 70 days from formal launch to formal suspension. That's the shortest major-party presidential candidacy in two decades, beating Jim Gilmore's 2008 bid, which lasted 79 days.