If Mitt doesn't backtrack and confess he screwed up with Romneycare AND wins the nomination, he will not only give Obama the victory but will give him a landslide mandate to destroy the United States at warp speed!
The line was meant to shut down Santorum, almost certainly stashed away for that purpose, but it fell flat. Rick wasn't angry, he was righteously indignant, and for the right reasons.
I think Santorum hit his stride last night.