It really doesn't matter who the VP is as far as political beliefs go - no matter who it is, he or she must get behind in the president. The very idea that someone could be planning to vote Hillary until this announcement is absurd.
If Hillary trusts Kaine to be one of her closest advisers, that's good enough for me.
North Caronlina isn't a swing state?
Democrats don't need it to win.
You never know. If Trump finds special appeal in the Rust Belt, Hillary could try to make a play for NC and still win.