Anyone who calls a nominee a "Jesus Freak" has some issues. It reeks of envy, arrogance, and elitism.
She was ridiculing the pathetic rationale that her supporters have been offering in her defense.
Namely, that she is a good nominee because she is a good Christian.
Her point was that there are millions of good, Pentecostal Christians who would have been preferable to Ms. Miers.