A Philly dilemma would be delicious. Blacks overwhelmingly don't support Sanders, and Sanders supporters aren't going to sit back and take it if the nomination is stolen from them. It could all so easily translate to the "outsider" and lot of the black vote going to Trump.
How are the dems EVER going to sort it out?
The Democrats/left have tons of serious problems that they never have to sort out - at least publicly - because the MSM covers their problems up, while making the tiniest dispute on the other side into front page news.