Bachmann is desperate to save her dying campaign. It's shameful she'd stoop that low.
Perry's clearly not afraid of the issue. Where Bachmann wouldn't name the company, Perry did. Where Bachmann would only say "thousands" donated Perry was specific ($5K) and put it in context of total money raised, tens of millions.
She also showed her desperation on the vaccine claiming there was "no choice" when she knew full well parents could opt-out for their kids. She affected a concerned and pleading mother's look, as if she was going to cry at one point. It was very unbecoming.
Like Romney, Bachmann showed no class on Social Security either suggesting Perry would end it when he was standing right there saying nothing of the kind.
When things got tough for her campaign, Bachmann revealed herself as a transparent, deceptive, innuendo-slinging liar. She learned well from her time with Ed Rollins.
I didn't see what Palin said but she's the last person who should be trading in innuendo after what's been said about her.
The opt-out was badly constructed, ignorant of the way that private schools did things in Texas. Once Perry was made aware of this, his excuse for ignorance was gone.