Viewing the video, looks like her mistake alone.
Some kind words for Michelle’s blunder
http://www.politico.com/news/stories/0611/57862.html
“Downes sounded forgiving of Bachmann’s blunder, acknowledging that “every last one of us misspeaks” and recalling: “John Wayne himself would mangle names like crazy — longtime friends and co-stars.”
“The more you talk, the more mistakes you make,” Downes said. “If you talk to Michele, tell her where we are and tell her to come see us.”