michelle obama! the fact that our first lady is so into physical fitness, and now we've got her on "the biggest loser" working out. that could not be any cooler. >> trainer bobvery nervous? there's the first lady with that group of people, working out. michelle obama, april 2012, encouraging american families to get moving, to be fit and healthy. watching the first lady in action like that, for a good cause, trying to encourage people, doing crunches and lunges and jumping jacks. that was inspiring to a lot of people. this guy, though, had a different take. his reaction was this -- quote, did you notice that while michelle obama is working out on tv, she is sweating on the east room's carpet? i'm just saying," dot, dot, dot. the guy who tweeted that is named rick grenell. back in 2012 when he tweeted that, he was a republican operative who had a very public habit of tweeting mean and frequently sexist things about the obamas and about their kids, also about then vice president joe biden, about prominent democrats. he would also sometimes use his twitter account to go after members of his own party as well. he repeatedly attacked former republican speaker of