MICHELE BACHMANN’S McCARTHYISM and the despicably racist and bigoted attacks against Human Abedin inspired Sen. John McCain to take to the floor of the Senate to denounce them. Her former presidential campaign manager Ed Rollins unloaded:

Her unsubstantiated charge against Abedin, a widely respected top aide to Secretary Hillary Clinton, accusing her of some sort of far-fetched connection to the Muslim brotherhood, is extreme and dishonest.

Having worked for Congressman Bachman’s campaign for president, I am fully aware that she sometimes has difficulty with her facts, but this is downright vicious and reaches the late Senator Joe McCarthy level. (Joe McCarthy falsely made claims that there were large numbers of Communists and Soviet spies inside the State Department in the early 1950’s. On December 2, 1954, the Senate voted to “condemn” McCarthy on two counts.) …

…As a member of Congress, with a seat on the House Intelligence Committee, Mrs. Bachmann you know better. Shame on you, Michele! You should stand on the floor of the House and apologize to Huma Abedin and to Secretary Clinton and to the millions of hard working,loyal, Muslim Americans for your wild and unsubstantiated charges. As a devoted Christian, you need to ask forgiveness for this grievous lack of judgment and reckless behavior.

Back in June, Bachmann wrote a letter outlining her fears, asking for an investigation and the assistance of inspector generals in the State, Homeland Security, Defense and Justice Departments, then said the following on a right-wing radio show [h/t Jason Linkins]:

“It appears that there has been deep penetration in the halls of our United States government by the Muslim Brotherhood,” Bachmann said. “It appears that there are individuals who are associated with the Muslim Brotherhood who have positions, very sensitive positions, in our Department of Justice, our Department of Homeland Security, potentially even in the National Intelligence Agency.”

Bachmann was joined by co-signers Reps. Trent Franks, R-Ariz., Louie Gohmert, R-Texas, Thomas Rooney, R-Fla., and Lynn Westmoreland, R-Ga.

Unbelievably, Bachmann, the woman who made GOP history by becoming the first Republican female to ever win a presidential straw poll, caucus or primary, had the unmitigated gall to single out Huma Abedin and link her to the Muslim Brotherhood.

The letter to the State Department singles out Huma Abedin, a deputy chief of staff for Secretary of State Hillary Clinton, and asserts that three of Abedin’s family members are connected to the Muslim Brotherhood. It says Abedin’s position affords her access to Clinton, and adds that the department has “taken actions recently that have been enormously favorable to the Muslim Brotherhood and its interests.“

After being called out on her racist bigotry, Mrs. Bachmann did what any good right-wing conspiracy nut does, she said the letter was “distorted,” then dug into the “patriotism” hole, as she sees it.

Bachmann said the State Department and White House had been making “dangerous national security decisions” by letting known terrorists into the country. “I will not be silent as this administration appeases our enemies instead of telling the truth about the threats our country faces.”

The charges lobbed at Mrs. Abedin, with Bachmann citing her family members, is as un-American as anything ever leveled in the Joe McCarthy era.

Beyond Bachmann’s racism, that anyone would believe that Secy. Clinton would ever allow anyone remotely subversive to be her right hand for so many years defies credulity.

But it goes right along with the latest Team Romney tactics to label Pres. Obama someone “foreign.”

Just when you think American politics can’t get worse, Republicans hit a new low.