Texas Gov. Rick Perry goes from 29 percent to 2.9 percent in Florida in a month. At some point does he give up?

Perry goes from dominating to pathetic. Along the way, he plays with fire: “Texas Gov. Rick Perry has publicly distanced himself from the anti-Mormon rhetoric of a prominent Baptist minister who has endorsed his presidential campaign. But new evidence suggests that Perry’s team may be quietly advancing the notion that Mitt Romney’s faith should disqualify him from the White House. The Daily Beast has obtained a series of e-mails that show an influential evangelical activist with close ties to the Perry campaign stressing the political importance of ‘juxtaposing traditional Christianity to the false God of Mormonism,” and calling for a “clarion call to Evangelical pastors and pews’ that will be ‘the key to the primary’ for Perry.” On the bright side, he’s going to make it very hard for the Obama campaign to play the “weird” (aka “Mormon”) card if Romney is the nominee.

Herman Cain’s 9-9-9 goes from novelty to “very dangerous” in a week or so. Grover Norquist: “To put tapeworms in your tummy to try and maintain your weight — they may have their own idea about their growth patterns and what they want to do. Creating new taxes is a very dangerous project.”

The conservative blogosphere goes from intrigued to dismissive. The National Review editors: “Herman Cain deserves credit for proposing a tax-reform plan that is specific, promotes economic growth, and has captured the imagination of conservatives nationwide. His 9-9-9 plan builds on the insight that one of the chief defects of the current tax code is its bias toward consumption over savings. But his plan’s peculiarities of design, substantive weaknesses, and political naïveté render it unworthy of conservative support.”

Obama goes from uniter to desperate demagogue. “The Republicans plan, Obama says, boils down to this: ‘Dirtier air, dirtier water, less people with health insurance.’ ” He forget more drowned puppies.

Perry goes from contender to irrelevant. “When he entered the race just a couple of months ago, Mr. Perry was thought to be the ultimate anti-Romney, with all the charisma Mitt Romney lacks and the ability to excite all those who can’t get worked up about him. Set against Mr. Perry now, Mr. Romney prevails easily, 54% to 39%. Mr. Romney actually does better among tea-party backers in that match-up, and loses only slightly among ‘very conservative’ voters.”

Rick Santorum goes from invisible to building-mode in Iowa. “Presidential candidate Rick Santorum has added two more staffers to his Iowa campaign: Tina Goff, who resigned this summer from leading Herman Cain’s efforts here, and Tom Intorcio.” (She was one of several staffers to quit when he became obvious he was not putting together a ground game there.)

President Obama goes from the savior of his party to a ball and chain around Democrats’ ankles. The latest inanity: “President Obama is against repealing the health law’s long-term-care CLASS Act and might veto Republican efforts to do so, an administration official tells The Hill, despite the government’s announcement Friday that the program was dead in the water.”