Chris Pratt backed a political candidate Sunday ahead of midterm elections and gave his support to billionaire Rick Caruso in the Los Angeles race for mayor.

Pratt, 43, took to Instagram stories where he virtually stumped for Caruso, a former president of the Los Angeles Police Commission. 

Caruso also served as a commissioner for the Los Angeles Department of Water and Power under Mayor Tom Bradley in 1985.

"I've lived in LA for over 20 years. It's been great to me. In that time I've seen what many residents here have seen, the city's gradual decline into pain and utter disarray," Pratt wrote online. "If you live here, you know exactly what I'm talking about.

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"I don't normally support political candidates. But in this election, there's too much to lose."

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He added, "If you're an LA voter, I urge you to vote for @rickcarusola. He's a builder. He knows how to get s--t done. He's the guy for our city. Rick Caruso for LA Mayor."