No, Michele knows it was false, and here is proof that she knows it was false.
Newt Gingrich at a September 3, 2008 event with Michele Bachmann entitled Governing and Political Change, explains his position on Fannie and Freddie. He also details that he did consulting work for them, and that those who profited from the institutions should have to pay. Michele Bachmann is standing next to him, and she knows here recent accusations against Gingrich about Fannie/Freddie are false.
That proves nothing except that Newt was making come claims again. Her attack was correct, and you know that.