Kamala Harris remains the clear favorite among Democratic voters eyeing the 2028 presidential race, according to a new national survey.

The latest Center Square Voters’ Voice Poll found the former vice president backed by 27% of left-leaning voters, nearly doubling the support of her nearest rival, fellow California native governor Gavin Newsom, who came in second at 14%.

While Harris maintains a sizable advantage, the poll suggests her grip on the party’s electorate may be loosening somewhat.

Her support has slipped from 33% in October and 31% in March to 27% in the latest survey. Newsom has also trended downward, falling from 21% last fall to 14%.

The findings point to an increasingly fluid Democratic field, with other high-profile figures beginning to gain traction as the 2028 election cycle slowly takes shape.

Former Transportation Secretary Pete Buttigieg posted the largest gain among the candidates listed, reaching double digits for the first time. Buttigieg drew support from 11% of respondents, up four percentage points from earlier surveys.

Meanwhile, New York Rep. Alexandria Ocasio-Cortez received 8% support, recovering from a dip earlier this year.

Still, a sizable share of Democratic voters remains undecided.

Seventeen percent of respondents said they were unsure whom they would back in a 2028 primary contest, underscoring the uncertainty surrounding a race that remains more than two years away.

Harris performed especially well among younger voters and black voters. Nearly half of black respondents, some 49%, said they would support her, while 48% of voters between the ages of 18 and 29 favored the former vice president.

The Californian also led among voters without a college degree, capturing 35% support in that demographic. Even among white voters, Harris outpaced the rest of the field, earning 17%, followed closely by Newsom at 16% and Buttigieg at 15%.

However, Harris was not the top choice across every group surveyed.

Among voters aged 65 and older, Newsom held a decisive lead with 23% support, compared with 15% for Buttigieg and 11% for Harris. Newsom also narrowly edged Harris among respondents with postgraduate degrees, 19% to 18%.

The survey was conducted nationally by Noble Predictive Insights between June 4 and June 6 using an opt-in online panel and text-to-web cell phone outreach. The poll included 1,224 registered voters who identified as Democrats or left-leaning independents, including 1,013 Democrats and 211 independents.

The results stand in contrast to another recent 2028 presidential poll released last month, which painted a bleaker picture for both Harris and Newsom.

An Emerson College Polling survey conducted in late May found neither Democrat able to break 20% support in a crowded field. Harris slipped three points from February to 10%, while Newsom fell four points to 16%.

That poll also highlighted growing strength among other Democrats, with Pennsylvania Gov. Josh Shapiro climbing to 10% and Kentucky Gov. Andy Beshear rising to 9%.

On the Republican side, the survey found Secretary of State Marco Rubio nearly tied with Vice President JD Vance for the party’s nomination.

The Center Square poll, however, suggests Harris still enjoys a substantial advantage among Democratic voters despite her recent decline in support.

Other Democrats included in the survey trailed well behind the frontrunners. 

Mark Kelly and Shapiro together accounted for 9% of respondents, while figures such as J. B. Pritzker, Wes Moore, Cory Booker, Amy Klobuchar, Chris Murphy and California Rep. Ro Khanna garnered smaller shares of support.

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