Thanks. I'm aware of the Powell case, which lies behind my comment that "Burris could go to court and challenge their right to refuse to seat a duly legally-appointed senator, but that would take time." The Supremes can overrule the Senate, as they overruled the House in that case, but they can't stop it from acting in the first place.

One thing I trust will not happen: they won't seat Burris and then expel him. They don't have the necessary votes for that, and there's no grounds for doing so.