I didn't see that, but it's obviously sleazy.
Don't discount the possibility that some of the sleaze done in Romney's name may have actually come from his opponents. Seriously, what's the first thing a lying leftist does when he calls CSPAN or a radio show? He claims to be a conservative to maximize the impact of what he's saying.
The same could be true here. Especially with something as outrageous and damaging as a vulgar attack on FR's favorite candidate's wife.
Just something to take into consideration.
The vulgar rhyme, for example, was posted by JCEccles, who was NOT some liberal interloper troll.