Board Thread:Support Requests - Community Management/@comment-13488655-20150224151633/@comment-1038387-20150224155930

If there are other admins there, you can start a vote. From "How You Can Work Through an Admin Dispute":

Even with everyone doing their best to be constructive, that discussion may not work at resolving the problems. That's when it's finally time to discuss whether the admin should lose their rights. Again, a public space such as the forums is generally best. Open and clear discussion that everyone can see are better than a closed space such as a chat PM. Even if you ask for someone to be removed as admin, you should still stay calm and resist attacking them or others. This is your best chance to make your case, and any bad behavior on your part will just make you look like the one in the wrong.

If the community is in agreement that the admin's rights should be removed, then it is a bureaucrat's responsibility to make the change. If the person being removed is themselves a bureaucrat, then you will need them to remove their own bureaucrat rights, or ask staff to do so. Be sure to link to the community discussion if you contact staff.

You can also contact staff if the bureaucrat(s) are not willing to remove rights. Again, you need to link to the community discussion, and be prepared for us to look at the situation carefully before we decide whether to go ahead and make the changes.

This is, however, an ugly situation - it's wise to consult with Staff first via Special:Contact/general. Explain your case and give evidence of their behavior. Ask for the best ways to start a vote; make sure they know so they can step in if it turns nasty. If the admins start banning people for participating in the discussion or remove it or parts of it, that definitely counts as abuse of power. However, if the vote fails, that poisons the atmosphere for everyone.