That's according to an exclusive Action News Poll conducted by SurveyUSA released Tuesday.
In the poll of likely voters, 21% said they would support Newsom, making him the front-runner, but the race is close. Villaraigosa was picked by 18% of respondents and Cox by 15%, meaning that neither is a clear #2.
Under California's primary election system, the top two vote-getters will advance to the general election, regardless of their party affiliation. As of today, all three have an opportunity to advance.
But time is running out for candidates to make their case, early voting begins in just two weeks.
Here's how the poll of likely voters broke down:
- 21% - Gavin Newsom (D)
- 18% - Antonio Villaraigosa (D)
- 15% - John Cox (R)
- 10% - Travis Allen (R)
- 9% - John Chiang (D)
- 4% - Robert Newman (R)
- 3% - Amanda Renteria (D)
- 1% - Delaine Eastin (D)
- 1% - Other
- 17% - Undecided
The poll has a credibility interval of 5.5 percentage points.
GO IN DEPTH: SurveyUSA Complete Interactive Crosstabs
RACE FOR SENATE
Meanwhile, in the race for the U.S. Senate, Incumbent Democrat Dianne Feinstein continues to sail towards the general election with, locking up 39% of the vote, but it's finally becoming more clear who will challenge her in November.
It will most likely be Republican Patrick Little, who is polling at 18% overall but has found strong support here in the Central Valley, where he ties Feinstein.
Democrat Kevin De Leon and Republican Rocky De La Fuente are the next closest candidates but are both well behind with just 8% of respondents supporting them.