Democratic primary voters favor Michelle Obama for president over any other candidate in the party, according to a new Zogby Analytics poll.

Here's how the survey breaks down:

Those who favor:

Michelle Obama: 22 percent.

Former Vice President Joe Biden: 19 percent.

Vermont Sen. Bernie Sanders: 18 percent.

Massachusetts Sen. Elizabeth Warren: 8 percent.

Facebook founder Mark Zuckerberg: 4 percent.

California Sen. Kamala Harris: 3 percent.

New York Gov. Andrew Cuomo: 2 percent.

Virginia Gov. Terry McAuliffe: 2 percent.

Minnesota. Sen. Am Klobuchar: 1 percent.

New York Sen. Kirsten Gillibrand: 1 percent.

20 percent were not sure.

"Although Michelle Obama is extremely popular with the American people, there has been no indication she will run in 2020," the report accompanying the results said. "The numbers here do show friction within the party, but Obama is a nice name to have on the back burner.

"It's too early in the process to select a nominee, and one fifth of Democratic voters are still undecided. But anything can happen in the next three years, and Michelle Obama as the prospective nominee elicits the most excitement on the left."

The poll surveyed 682 Democratic presidential primary voters.