Harry was not a member of the Wizengamot, and was thus technically unable to call for votes. But, Mr. Weasley decided to make the vote nonetheless. "We will vote on whether Minister Umbridge should be stripped of her position or not. Raise your wand if your vote for." To his surprise, the entire Wizengamot voted unanimously for Umbridge’s removal. "Dolores Umbridge, you are as of now no longer Minister for Magic."