A meme that mocks President Biden has been transformed by supporters to celebrate his recent wins. But questions about whether he should run for reelection remain. The Washington Post's Matt Viser explains. This episode was produced by Miles Bryan and Jon Ehrens, edited by Matt Collette, fact-checked by Laura Bullard, engineered by Paul Robert Mounsey, and hosted by Sean Rameswaram. Transcript at vox.com/todayexplained  Support Today, Explained by making a financial contribution to Vox! bit.ly/givepodcast Learn more about your ad choices. Visit podcastchoices.com/adchoices