Certainly shows how much her and her staff took great care in preparing for the speech.
Check it out:

First lady Michelle Obama repeatedly botched the name of Rep. Bruce Braley (D-Iowa) during an event to support his Senate campaign Friday in Des Moines.

On at least three occasions the first lady referred to the Iowa lawmaker as “Bruce Bailey,” according to a reporter for the Des Moines Register.

Republicans immediately seized on the gaffe, mocking the first lady’s mistake on Twitter.

“In defense of FLOTUS, [Democrats] might consider finding this Bailey guy,” said National Republican Senatorial Committee spokesman Brad Dayspring. “Gotta be more likable and probably hasn’t threatened to sue neighbors.”