Ezra Klein has a lengthy and interesting interview with Warren on Vox.com. When he asked her how she planned to get rid of the filibuster, she responded by saying she could persuade moderate Democratic senators to abolish it by arguing that her policy plans were a key element of her candidacy, and that keeping the filibuster (and thereby killing her plans) would frustrate the clear expressed will of the nation.
If she truly believes that, she’s missing the point. There is a lot of skepticism among Democratic senators about eliminating the filibuster because they know the filibuster would probably prevent a counterrevolution in the future. The risk/reward calculus is the real issue here–for both sides.
And so, if a President Warren really wants to prevail on this point, she will either have to convince the moderates in the Senate that ongoing demographic changes mean the counterrevolution cannot happen in the foreseeable future, or that her plans are so popular and important that running the risk of a catastrophe in, say, 2024 is worth it. My advice? Don’t hold your breath.