If you live in one of the states that has a primary today, please vote. I don’t even care for whom you vote. People complain about the special interests in politics, but the main reason those special interests can get away with it is because most people don’t vote.
Ignore the AP calling the primary for Clinton. Their prediction is based entirely on superdelegates, while the pledged delegates are far more important.
Vote for Clinton or vote for Sanders. Vote for whomever you want. The only wasted vote is one you don’t cast. I don’t even care if you vote for Trump, since all of his opponents have dropped out.
Just vote. If you don’t vote, you don’t get to complain.