Former Vice President Joe Biden has expanded his lead over 2020 presidential rivals, building support among voters aged 30 and older, Hispanics and African Americans.

The latest Zogby Analytics poll shows that his main competitors are Vermont Sen. Bernie Sanders, a 2016 Democratic primary candidate, and TV’s Oprah Winfrey, who has indicated a reluctance to run.

In the survey, detailed here, Biden is tops at 26 percent followed by Sanders at 18 percent and Winfrey at 14 percent.

Sen. Elizabeth Warren, the Massachusetts liberal adored by progressives, is at 8 percent followed by California Sen. Kamala Harris, a top GOP concern, at 4 percent.

Zogby has former Virginia Gov. Terry McAuliffe as a non-factor, at 0 percent. Some 22 percent are undecided.

“Since our polls in September and October, Joe Biden has jumped past Bernie Sanders in a potential 2020 democratic primary showdown. Biden is now consolidating his lead among his main rivals Bernie Sanders and Oprah,” said the poll analysis.

It found that Biden is winning men, women, and voters aged 30 and older. Sanders and Winfrey are doing well with younger voters.

Biden also leads among Hispanics and African Americans and is tied with Sanders with liberals.