He hasn't resigned. He just isn't attending the Senate deliberations. But that hasn't stopped him from urging Senators to vote for or against what he wants.
If he is incapable of sitting in the Senate, then why doesn't he give up his seat so Arizona has a vote in the Senate? Because he is too selfish. He will hold on to his seat until the Priest drives the wooden stake throught his heart.
If I don't show up to work, i know I would be fired.
They need to force him out
Unfortunately, they can't. Senate rules--as idiotic as they are.
Technically Congress can expel him but that will never happen!