SACRAMENTO, Calif. -

A new Field Poll finds that Governor Jerry Brown has a lead of 16 percentage points over GOP challenger Neel Kashkari in the governor's race.

The poll released Thursday finds the Democratic incumbent with 50 percent support among likely voters compared to 34 percent for Kashkari, a former U.S. Treasury official.

That's an increase of 2 percentage points in Kashkari's support since June.

The survey also found that Brown has a large lead with most voting blocs, including a 32-point edge with those who call themselves moderates.

Kashkari and Brown are scheduled to debate Thursday night in Sacramento in the only planned debate this election season.

The Field Poll interviewed 467 likely voters from Aug. 14-28.

The poll has a sampling error margin of plus or minus 4.8 percentage points.