As far as I'm concerned this is just another nail in the coffin of the republican party. A month ago I thought I was going to vote third party for president and republican down ticket. Now I have decided to completely abandon the republicans. At the very least they would need to get rid of McCain before I would even consider voting for any party member. And now they are going to have to discipline their Nebraskan contingent as well.
Frankly, the party can drop dead as far as I'm concerned. Whatever replaces it will almost certainly be better. And less cowardly.