Former Rep. Katie Porter is sinking in the polls as the race to replace Gov. Gavin Newsom gets downright claustrophobic.

Support for Porter , the former Orange County congresswoman who’s been labeled a tyrant by a former staffer and her ex-husband, has slipped to 11% of voters surveyed by Emerson College in a new poll released Thursday.

The poll suggests splintering support for Porter and others in the crowded primary field after the entry of East Bay Rep. Eric Swalwell and Tom Steyer , the billionaire climate activist.

“Upon entering the race, Swalwell splits the Democratic vote with Porter, 20% supporting Swalwell and 17% Porter,” Spencer Kimball, executive director of Emerson College Polling , said in a statement. “Republican voters are split between Bianco and Hilton, at

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