BACHMANN FINDS HER WMD…. When Glenn Beck’s latest nonsense comes up, the conversation often turns to his sincerity. We really don’t know for sure whether the Fox News personality actually believes his deranged observations, or whether it’s an elaborate act. Beck’s either deeply disturbed or he’s exceptionally good at pretending to be deeply disturbed.

Over the weekend, though, we were reminded that no such debate exists with Rep. Michele Bachmann (R-Minn.). The ignominious Republican, arguably Congress’ most ridiculous member, was in South Carolina Saturday night, apparently as part of Bachmann’s alleged national ambitions.

Those who heard her learned, among other things, that the federal tax code is a “weapon of mass destruction.”

Bachmann also said there’s a business bubble because the U.S. has the “highest corporate income tax rate in the world.”

It is the tax code she blames for the “business bubble.” She said, “We need to get rid of the blood-sucking tax code. It’s got to go, just scrap the current tax code,” adding that it is “a weapon of mass destruction.”

Bachmann also has a new idea on how to address entitlement costs.

Bachmann blasted entitlement spending and urged reform in Social Security. “The problem is our health care welfare spending which is out of control,” she said. “The good news is we can solve this problem. It needs to be a market based approach.”

She offered up a somewhat non-traditional solution: “We need to simply tell people the facts, like Glenn Beck, with that chalkboard, that man can explain anything. I think if we give Glenn Beck the numbers, he can solve this.”

After complaining about “cohabitating couples” and the government helping students afford college tuition, Bachmann went on to argue, “The bureaucrats now hate our values; there’s a war on marriage, a war on family, a war on fertility all while funding and promoting abortion.”

Just to be clear, there was no indication that Bachmann was kidding. By all accounts, she believes all of this.

What’s more, her unhinged tirades brought Bachmann’s audience “to their feet” and — this is my favorite part — the chair of Spartanburg County Republican Party called Bachmann “inspirational” and “very presidential.”

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Follow Steve on Twitter @stevebenen. Steve Benen is a producer at MSNBC's The Rachel Maddow Show. He was the principal contributor to the Washington Monthly's Political Animal blog from August 2008 until January 2012.