While investigation the mayor's death, Shawn ends up running for office on Psych. "The Santa Barbarian Candidate" is the 25th episode of the who's sixth season.
Added:

Psych Season 7 Episode 10 Quotes

My senses don't lie---they multiply.

Shawn

You are on the hook until you make it so I don't have to lie for you anymore.

Juliet