But the real reason this rumor is nothing to take seriously is because the only Democrat not in the fray who could save the party from Bernie Sanders with a Hail Mary candidacy declaration is Michelle Obama, perhaps the only party celebrity who refuses to run for the presidency.

The former first lady is the most admired woman in the country, beating Melania Trump twice over in Gallup’s poll. Unlike Hillary Clinton, who soured in public opinion the more time she spent in the spotlight, Obama found her footing and national favor during her eight years in the East Wing. Since President Trump took office, she has blossomed into a bestselling author, style icon, and media maven.
Washington Examiner
A unity slate to save the Democrats — and the republic
The candidates will doggedly fight one another with everything they have until all but one are forced to surrender under the harsh logic of chasing dollars and votes to survive. As impressive as this group is, the party risks a zero-sum fight that could play to its worst instincts and weaken it for the general election.
The structure of the primary process, and the rich diversity of the party itself, may end up subverting the ability of Democrats to come together to address the nation’s most urgent concern: the real danger the Trump presidency poses to American democracy.