Yes, they should follow the popular will of the voters.
Remind me, who said that again?
The voters cast their votes without the knowledge that FBI director would submit findings that that the candidate in question acted extremely carelessly in handling classified and sensitive state communication. While the bar is not high enough for criminal proceedings, it is high enough to question the integrity of the candidate, and raise the question of whether the party should put forth a severely compromised nominee.
Oh, so now democracy doesn't matter.
Guess Sanders should just plow a tank into the DNC and crown himself.
The voters also didn't know they were voting for a borderline criminal at the time they voted. New information, and they don't get a chance to re-vote.
They all knew exactly what they were voting for at the time. FBI cleared her as well. I knew this would happen though, no matter what people would declare her guilty.