How soon before some producer or entertainment mogul gets a hold of her and says, "we need you to make a little controversy...it'll help your career. How about a little protest statement against George Bush?"
When that time comes, we'll see how she handles it.
I wouldn't count on it, unless she plans to switch from country. The Dixies messed where they live and are being kept on life support by the liberal Bush-protest dollars, but those people aren't willing to go to concerts. If Underwood's people want her to have a healthy career, they'll avoid anything political.