Obviously Blitzer could have cut “beginning to look a little” from his put-down, but those were harsh words coming from Blitzer. Trump had already insulted the CNN anchor’s ratings, telling him, “Frankly, if you would report [the birther conspiracy] accurately, I think you would probably get better ratings than you’re getting, which are pretty small.”

So Obama surrogates Hilary Rosen and Cory Booker were almost universally denounced for ill-chosen words on behalf of the president, but Trump gets to insult not just Obama but an influential cable news anchor on behalf of Romney with no reprisals? That’s the old IOKIYAR double standard at work, but this time, it might actually backfire and hurt Romney.

For his part, Romney refused to either cut ties with Trump or denounce him. And his refusal to do so was a craven exercise in electoral groveling. “You know,” he told reporters Monday night, “I don’t agree with all the people who support me, and my guess is they don’t all agree with everything I believe in. But I need to get 50.1 percent or more, and I’m appreciative to have the help of a lot of good people.” What else will Romney do to get to 50.1 percent? Stay tuned.

Of course, that’s not the first time Romney has refused to denounce or distance himself from a Republican supporter. When Rush Limbaugh called Sandra Fluke a “slut” and a “prostitute,” he merely said it was “not the language I would have used.” When Ted Nugent said “if Barack Obama becomes the president in November, again, I will be either be dead or in jail by this time next year,” Romney simply asked for more civility in politics. When a supporter said Obama should be “tried for treason,” Romney didn’t challenge her at all and later told reporters: “I don’t correct all of the questions that get asked of me. Obviously I don’t agree that he should be tried.” Romney keeps getting served big fat pitches to let him take a swing at a defining moment of political courage, pitches that he could knock out of the park. He just watches them float by.

Maybe Romney thinks he needs the birther loons to get elected. The base isn’t crazy about him. And Salon’s Alex Seitz-Wald reveals that Orly Taitz and Joseph Farah are thrilled that Trump continues to advance their cause. But this can’t end well. For better or worse, independents are likely to decide this election, and birther nonsense isn’t going to win them over.

I’ve probably reached my own personal low when I’m fact checking Trump’s lies, but today he consistently claimed – referencing a Breitbart.com story – that Obama’s “publisher” wrote that he was born in Kenya; in fact, the dubious story makes clear it was his literary agent, in a publicity brochure about her clients. (A former agency assistant quickly took the blame for the mistake and said the information didn’t come from Obama.)

Also, when talking about the agent’s brochure to the Daily Beast, Trump said it was a mistake made by a young man who “didn’t know he was running for president, so he told the truth.”  But when dismissing Blitzer’s reference to the Honolulu Star Bulletin’s Barack Obama birth announcement just days after he was born, Trump argues “many people put those announcements in because they wanted to get the benefit of being so-called born in this country.” So his parents knew enough to fake a birth announcement, but the young Harvard Law Review president threw all their hard work away to sell a book? Uh oh, I’m trying to find consistency in a Donald Trump argument. Time to close. Romney owns everything Trump says, and it will cost him in November.

The Breitbart.com empire must be proud Trump is using their story as “proof” of his birther nonsense. Even as they printed the allegation, they stressed that Breitbart himself didn’t support birtherism, and they insisted that they only published the story about the agent’s brochure just to prove the media didn’t vet Obama. Let’s get this straight: So they’re chiding the media for not publishing something that they themselves believe to be false. That’s awesome journalism.

In related news: Regarding the revival of Trump birtherism, I said Friday on “Hardball” that Breitbart’s journalistic proteges were “bottom feeders,” and one of them quickly proved it.  I appreciate all the support I got on Twitter, but to me it was a dog bites man story, and utterly predictable. (I apologize to dogs everywhere for that unfair comparison.)

I talked about how Trump hurts Romney on MSNBC’s “Politics Nation” Tuesday afternoon:

Visit msnbc.com for breaking news, world news, and news about the economy

Orly Taitz, the dentist cum lawyer cum California Senate candidate who has filed numerous colorful lawsuits challenging Obama’s birth certificate, is thrilled. “Romney is correct, this is long overdue,” Taitz told Salon. “I do believe that the Romney campaign is sending a message that they are questioning Obama’s eligibility.”

Joseph Farah, the publisher of the conservative news outfit WorldNetDaily, which devotes the vast majority of its time to advancing new grist for the birth certificate mill, agrees. Farah sees the campaign’s use of Trump as a subtle way to appease what he sees as a surprisingly large voting bloc who still have doubts about Obama’s birth, all without making the candidate actually say it himself.

“Trump, whether he’s out there publicly talking about eligibility or not during the campaign, because of what he’s previously said and done on the subject, has already won the hearts and minds of people out there who are suspicious about this, so they associate Trump with suspicions about Obama’s story,” Farah told Salon.

“So that will help Romney solidify a base that he desperately needs to carry overwhelmingly, and Romney doesn’t need to say anything,” he said. In a sense, they’re “doing each others’ bidding” — Romney gets to associate with the issue while Trump gets to be Trump.

Farah said as many as 50 percent of Americans have doubts about Obama’s story, while Taitz pointed to a dubious online poll which found that 99 percent of Tea Party supporters do not believe that Obama was born in Hawaii.

Though a recent YouGov poll found the number of doubters to be about 25 percent, Farah may have a point about Romney’s need to appeal to skeptical arch-conservatives who really hate Obama. Sen. John McCain (R-AZ) strongly repudiated the birthers in 2008, but as Trump himself tweeted today, “@BarackObama is practically begging @MittRomney to disavow the place of birth movement, he is afraid of it and for good reason. He keeps using @SenJohnMcCain as an example, however, @SenJohnMcCain lost the election. Don’t let it happen again.”

Still, Trump may not be an ideal advocate for the cause, Farah acknowledged, saying his characteristically flamboyant and self-centered approach to pursuing the issue is not always the most informed. “Does Donald Trump know all that stuff? I don’t know,” he said.

Though neither said they’ve been contacted by the Romney campaign, Taitz said she has been invited to two Romney fundraisers by their hosts, including one who was a Bush-era ambassador to Spain.

Meanwhile, Taitz called on Romney to release his birth certificate as well (he has not, so far), and she has said both vice presidential candidates should, too. “We have to be consistent,” she explained.

Nevermind that Craig is actually just fine, according to the town’s mayor. “Nobody’s been laying people off or anything like that,” Terry Carwile, a retired coal miner, told CBS. “As a matter a fact, they’ve been hiring.” Indeed, coal production was up in the third quarter of 2011 in Colorado and Utah, as it has been elsewhere under Obama.

But Romney was not always so pro-coal. In 2006, after he pulled out of a regional greenhouse gas emission agreement, Romney released an alternative plan that called for coal-burning power plants to “pay to plant a forest in Brazil if those trees absorb the amount of carbon dioxide the plant must reduce from its smokestacks,” according to a Boston Globe article from September.

“This regulation provides real and vital environmental benefits, with a flexibility that is essential in this new and volatile energy market,” Romney said at the time.

Further back, in 2003, Romney made a big show of taking on a polluting coal-fired power plant. He held a press conference in front of the PG&E facility and yelled, “I will not create jobs or hold jobs that kill people, and that plant kills people.”

While environmentalists didn’t think Romney’s 2006 rule went far enough, it was certainly more than Romney would support today.

When Mitchell asked if Romney will “stand up next to Donald Trump and disavow that [myth],” Madden replied, “He’ll stand up next to Donald Trump and he’ll talk about why he wants to be president.” “Any time the subject goes off of that, or if something where … Governor Romney would disagree, he’s going to make that very clear,” Madden added, without saying whether that clarification would be to Trump’s face or after the event.

The twice-bankrupt casino mogul has managed to insinuate himself into the Romney campaign, even as he continues to push the entirely false and racially tinged birther myth. If Trump has his way, he’ll play an even bigger role in the Romney campaign going forward, potentially speaking at the GOP convention or even snagging the vice-presidential nod, for which he nominated himself this week.

The standard the Romney campaign seems to be advancing here is that it’s OK for the candidate to appear on the same stage as a loon, as long as that loon doesn’t say the thing that makes him loony in the candidate’s presence. And if he does, the candidate can merely disavow it later. But it’s hard to imagine that the right would be comfortable with Obama appearing on the same stage as, say, Bill Ayers or Jeremiah Wright, even if neither said anything controversial in that moment.