OK, Beet, who do you think is the most likely Republican nominee under this scenario?
EDIT: And yes, it is mathematically possible for Elizabeth Warren to jump into the race tomorrow, take every pledged delegate going forward, and go into the convention with more than either Hillary or Bernie. Will it happen? No. But is it possible? Yes. Stop saying my predictions are mathematically impossible because if that was true, Bernie wouldn't be campaigning.
Even if there is no path for him whatsoever, Bernie still would be running, at least until Hillary clinched enough delegated to become a presumptive nominee. Remember he launched his campaign to address issues, since literally nobody gave him a chance when he entered the race.