Sanders could be a good VP nominee for Hillary Clinton.
A Republican nominee cannot now win the Presidency without North Carolina -- or even if the state is close. See also Arizona, Georgia, Indiana, and Missouri. The last Republican nominee to win without North Carolina was Eisenhower in 1956.
Sanders wont be nominee, Julian Castro will solidify her base of Co, NV, NM & Pa. He lost Vegas big time meaning Latino vote. SANDERS will struggle with Blk voters in Philly, it would be an odd pick.
Sanders is so electable and would cost Dems Pennsylvania due to depressed Blk turnout in Philly, due to his poor standing in SC
Also, in Ohio River Valley, Blks support Clinton, because Strickland is running and have already is on record supported by Clinton