'Jell-O on a roller coaster'

I hadn't followed the story about the Tennessee GOP's ad featuring Michelle Obama's statements that she was never proud of her country until this year. But now Tennessee Sen. Bob Corker has condemned the ad. Michelle Malkin says:

Will the Republican civility-mongers not stop until the Right is completely disarmed?
The GOP establishment has been all atwitter of late over its demise and urging itself to "stand for something." But when its state parties takes a stand -- against the radical demagoguery of Jeremiah Wright or against the America-bashing of the Obamas -- the party elders quiver like Jell-O on a roller coaster ride.

Here's the ad. Judge for yourself: