Former first lady Michelle Obama is back in play big time as a favorite to be Joe Biden’s running mate.

As Sen. Bernie Sanders on Monday made a surprise endorsement of Biden in a warm and humorous video chat, the focus turned to Biden’s pick for vice president and gambling markets charted by Oddschecker.com saw a surge of support for Obama.

“Michelle Obama has been the most backed person in the market, accounting for almost 32% of all bets,” the firm said.

Spokesman Pete Watt told us, “Following Biden’s announcement that his VP would be female, plenty of names are being thrown into the ring, and the latest to attract a significant amount of attention is the former FLOTUS, Michelle Obama.”

He added, “Although her odds of +2500 [25-1] indicate that she remains an outsider with just an implied chance of 3.85%, you can expect to see that figure shoot up if she continues to receive bets at the same rate.”

The betting analysis site also showed that former favorites, Sens. Kamala Harris and Amy Klobuchar, have begun to fade as interest in Obama has surged.

Obama has ruled out a run, but Democrats are increasingly excited that a newly united Biden-Obama ticket would be the ticket to beating President Trump.

In the Oddschecker analysis, headlined “2020 US Election Odds: Michelle Obama Backed To Be Joe Biden's Vice President,” Michigan Gov. Gretchen Whitmer’s odds of being picked by Biden are also rising, to 6-1. She has had on-and-off fights with Trump over the administration’s response to the coronavirus.