Contested convention talk heats up after Biden's big South Carolina win

The campaign of Sen. Elizabeth Warren of Massachusetts signaled Sunday that she, too, plans to fight for the nomination through the convention even if she does not comes out of the primaries with the most delegates.

Those remarks come after Sanders said at a debate last month that whoever has the most delegates entering the convention, even if it is not a majority, should be the nominee. Rivals have called that a reversal of his position in 2016, when he ran against that year’s eventual nominee, Hillary Clinton.

As it stands, Sanders leads Biden by just four delegates in the latest NBC News projection. Further back are former South Bend, Indiana, Mayor Pete Buttigieg — who dropped out of the race on Sunday night — Warren and Sen. Amy Klobuchar, D-Minn. There’s also billionaire former New York Mayor Mike Bloomberg, who is appearing on the ballot for the first time in the Super Tuesday contests.