Every time

Rush Limbaugh - divorced three times, allegedly former opiate pill addict (to the point of deafness), Viagra traveller, and obvious blowhard gasbag - is the public face of the Republican Party. His long history of race-baiting doesn't disqualify him.

Every time he attacks or shouts down or demands fealty from a prominent Republican - say Colin Powell - the world gets another view of the ugly underside of right-wing politics. Pretty soon, that may be all that's left.

Except for the obvious danger of such extreme polarization and the inchoate alienated rage of some members of his audience (see comments here), this is good news for the American polity.