Elizabeth Warren believes Bernie Sanders’s insistence that the 2020 Democratic nomination should go to the candidate with a plurality of delegates at the national convention, not a majority as required by party rules, is fueled purely by self-interest.

Warren, 70, was asked Wednesday why she and the other contenders on the Nevada debate stage other than Sanders last week asserted they would deny the “will” of Democrats by referring to the party’s convention rules. That would involve selecting someone other than the hopeful with the most delegates at the July convention in Milwaukee to become the party standard-bearer who will run against President Trump.