Embarrassing for the Republicans: RNC Chair Michael Steele on NPR.

Embarrassing for the Democrats: Rep. Pete Stark calling moderate Dems “brain dead.”

Some of you might challenge the inclusion of one or both of these moments on this list. Some of you might argue that one is more embarrassing than the other, and they thus don’t belong on the same list. I won’t weigh in on the latter and on the former, we’ll just have to agree to disagree.