Plaster's falling down in pieces by the couch of pain
This is Zevon's final political song. It's filled with metaphors about the condition of the USA today: everything here is falling to pieces.
This song is a classic, even for Zevon, who was famous for his sarcastic, sardonic commentary. He's a fountain of great quotations, perhaps the one that applies best here is:
I wrote my songs despite the fact that I was a drunk, not because of it.