✔ 最佳答案
Thgey were forced to withdraw. Party rules. It's Michigan's fault for insisting on bringing their primary forward. Don't blame the candidates (except for the candidates who are going against the rules by keeping their names on the ballot!).
We all know that either Edwards or Obama would have won Michigan hands-down and because of the screw-up, the votes don't count for Clinton anyway. I very much doubt that many people in Michigan even turn up to vote.