Austin (CNN) South Bend Mayor Pete Buttigieg lambasted Mike Pence -- a man he used to work directly with during Pence's time as governor of Indiana -- calling the vice president a "cheerleader for the porn star presidency" on Sunday at CNN's town hall.

Buttigieg went on to question Pence's faith, asking rhetorically whether Pence stopped "believing in scripture when he started believing Donald Trump."

"How would he allow himself to become the cheerleader for the porn star presidency? Is it that he stopped believing in scripture when he started believing Donald Trump?" Buttigieg said. "I don't know. I don't know."

Porn star Stormy Daniels, whose real name is Stephanie Clifford, said last year that she and Trump had an affair in 2006 , after he married first lady Melania Trump and she gave birth to their son, Barron. Trump has denied having an affair with Daniels, but the President has admitted that he knew about payments to Daniels to stop her from selling her story.

Pence served as governor of Indiana from 2013 to 2017, overlapping with Buttigieg, who has served as the mayor of South Bend, Indiana, since 2012.

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