Warren is correct that Bernie Sanders did argue that he should stay in the race in 2016 because the super delegates could choose him to be the nominee at the convention, even though Hillary Clinton won a majority of pledged delegates and the popular vote
It's important to recall when Sanders made this argument - before the final primaries and caucuses had been contested - and that he abandoned it and endorsed Clinton before the convention. It was a case for not dropping out before all the votes were cast
The video of Sanders pressed on this issue in 2016 at the top of this thread comes from @RiegerReport of the Washington Post. I thought Twitter would include his handle when I posted it, but I guess it does not in a quote tweet for some reason.
@RiegerReport Last point: I think Sanders in 2016 and Warren now were forced into this absurd debate by an absurd system for choosing a nominee that expects voters in 4 small states to winnow the field down to just 1 or 2 candidates and it would be far better to let everyone run in every state
