In a hypothetical matchup, Michelle Obama leads Trump 50-39% in a recent Reuters/Ipsos poll, making her the only Democrat with a lead over Trump.
President Biden and Trump are tied at 40% in a head-to-head matchup, with 8% of voters undecided.
Despite her popularity, Michelle Obama has reiterated that she will not run for the White House.
The poll comes after a debate performance by Biden that has prompted some Democrats to call for him to step down and allow another candidate to run in his place.