[Brett66]

Another factor; besides McCain's embrace of liberalism, is that conservatives have endured 8 years of being stabbed in the back from Bush and congress.

We're mad as hell and not going to take it anymore, we can't abide another pseudo conservative that betrays us on key issues.

McCain is a betrayer X2, we've seen how a "compassionate conservative" can toss us and our issues aside, we're not going to take it anymore.

[McGruff]

conservatives have endured 8 years of being stabbed in the back from Bush

Or. Republicans and President Bush have been stabbed in the back by John McCain for the past 8 years.