Progressive commentator: Biggest mistake for Sanders, Warren would be to 'appeal to center'

Progressive commentator Sam Seder said Monday that progressive heavyweights Sens. Elizabeth WarrenElizabeth WarrenDemocrats blast Trump for commuting Roger Stone: 'The most corrupt president in history' Pharma pricing is a problem, but antitrust isn't the (only) solution The Hill's Campaign Report: Democratic Unity Taskforce unveils party platform recommendations MORE (D-Mass.) and Bernie SandersBernie SandersTrump glosses over virus surge during Florida trip The Hill's Coronavirus Report: Fauci says focus should be on pausing reopenings rather than reverting to shutdowns; WHO director pleads for international unity in pandemic response Ex-Sanders aide says Biden unity task forces need to go farther MORE (I-Vt.) shouldn't try to appeal to centrist Democrats. 

"I think just trying to appeal to the center," Seder, host of liberal talk radio program The Majority Report, told Hill.TV in response to a question over what would be the biggest mistake either candidate could make. 

“Both of them have a message to the extent that people perceive it as authentic,” he continued, adding their messages are “what’s going to bring out their voters.”

Seder also emphasized that there isn’t a clear sense of who the Democratic electorate is going to be, particularly in early state primaries.

“It’s sort of hard to know who is really going to show up in these early state primaries,” he said.

Both Warren and Sanders have emerged as top challengers to front-runner Joe BidenJoe BidenTrump commutes Roger Stone's sentence Hillicon Valley: Facebook considers political ad ban | Senators raise concerns over civil rights audit | Amazon reverses on telling workers to delete TikTok House Democrat warns about 'inaccurate' polls: Trump voters 'fundamentally undercounted' MORE in recent months.

A new poll found Warren leading former the former vice president for the first time in Iowa. 

According to a Des Moines Register/CNN/Mediacom survey, 22 percent of likely Democratic caucusgoers in Iowa back Warren for president. Another 20 percent named Biden, the current front-runner, as their top choice.

—Tess Bonn