Rep. James Clyburn, D-S.C., was the first major figure to publicly suggest the party could survey potential Biden replacements by conducting a “mini-primary,” a proposal echoed by New York Times columnist Ezra Klein and longtime Democratic political consultant James Carville.

An embattled U.S. President Joe Biden faced escalating pressure from fellow Democrats worried about his candidacy on Sunday, concerns he worked to ease with campaign stops in the battleground state of Pennsylvania.