Rep. James Clyburn (D-S.C.) said that the Democratic National Committee (DNC) should step in to end the primary process if former Vice President Joe Biden Joe BidenCast of 'Parks and Rec' reunite for virtual town hall to address Wisconsin voters Biden says Trump should step down over coronavirus response Biden tells CNN town hall that he has benefited from white privilege MORE sweeps the six states holding primaries and caucuses Tuesday night.

Clyburn, the No. 3 House Democrat and a prominent Biden backer, said on NPR that the DNC should cancel the remaining contests and debates if it becomes clear that the former vice president has an insurmountable delegate lead over Sen. Bernie Sanders Bernie SandersMcConnell accuses Democrats of sowing division by 'downplaying progress' on election security The Hill's Campaign Report: Arizona shifts towards Biden | Biden prepares for drive-in town hall | New Biden ad targets Latino voters Why Democrats must confront extreme left wing incitement to violence MORE (I-Vt.).

“I think when the night is over, Joe Biden will be the prohibitive favorite to win the Democratic nomination, and, quite frankly, if the night ends the way it has begun, I think it is time for us to shut this primary down, it is time for us to cancel the rest of these debates — because you don’t do anything but get yourself in trouble if you continue in this contest when it’s obvious that the numbers will not shake out for you,” Clyburn said.

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NEW: House Majority Whip James Clyburn tells NPR if Bernie Sanders doesn't win any states tonight, the Democratic National Committee should "shut this primary down" and "cancel the rest of these debates." https://t.co/qdk7LADWXk pic.twitter.com/ZxbEOb6hPl — NPR Politics (@nprpolitics) March 11, 2020

Clyburn maintained that Biden will be the “prohibitive nominee” and warned that a prolonged primary battle against Sanders could bring up attacks that could hurt the former vice president in the general election against President Trump Donald John TrumpHR McMaster says president's policy to withdraw troops from Afghanistan is 'unwise' Cast of 'Parks and Rec' reunite for virtual town hall to address Wisconsin voters Biden says Trump should step down over coronavirus response MORE.

“People will say things that you cannot overcome,” Clyburn warned.

The South Carolina Democrat is one of Biden’s central backers. Clyburn’s endorsement ahead of the Palmetto State’s primary last month is widely credited with helping revive Biden’s campaign, which had been left for dead after lackluster performances in Iowa, New Hampshire and Nevada.

The former vice president has since posted a decisive win in South Carolina, victories in 10 of 14 Super Tuesday states, and wins in Michigan, Mississippi and Missouri so far Tuesday night.