California Gov. Jerry Brown (D) isn't ruling out out running for president in 2020.

Brown opened up about his possible future in elected office during a Thursday press conference about his plan to fix California’s infrastructure, according to the San Francisco Chronicle.

“I don’t think I’m running for office,” said Brown, whose term is up in 2018. “I only have lieutenant governor, treasurer and controller left.”

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When someone in the crowd yelled “president,” Brown responded, “But I’d be 82 then," then paused before saying, "Don’t rule it out.”

Brown is the longest serving governor of California, holding office from 1975 to 1983 and then again from 2011 to present.

Brown long ago pursued presidential politics, running for the Democratic nomination in the 1976, 1980 and 1992 elections.

Brown criticized President Trump during his State of the State speech earlier this year, targeting Trump’s immigration policies and defending climate science.