Two trends are emerging in California’s Democratic presidential primary, with voting set to begin in just four months: Massachusetts Sen. Elizabeth Warren is surging, and home-state Sen. Kamala Harris is dropping back.

Two of the state’s most respected polls — a brand-new Public Policy Institute of California survey released Wednesday night and a UC Berkeley Institute for Governmental Studies report out last week — show Harris dropping to fourth place at just 8 percent. Both polls showed her falling sharply from their previous surveys over the summer.

Warren, meanwhile, tops the Democratic field, along with former Vice President Joe Biden and Vermont Sen. Bernie Sanders. That reflects significant gains from her showings in the two pollsters’ previous surveys and mirrors her rise in national polls.

At the California Democratic Party convention this past spring, Inyo County delegate Joe Griego was still deciding between Warren and New Jersey Sen. Cory Booker. Now, he says, he’s “definitely leaning more toward Warren.”

Griego, a 54-year-old who’s the chief technology officer for a neighboring county’s office of education, says he’s impressed by Warren’s organization, messaging and progressive vision, and thinks she’ll be “hard to beat.”

“She seems to be a solid candidate. She articulates a progressive vision that resonates with me,” he said Wednesday. “If the primary (were) held today, she’d get my vote.”

Harris, on the other hand, has struggled to articulate her vision, say Griego and San Luis Obispo County state party delegate Rosemary Wrenn.