Hey, now that I've got your attention: Doesn't McCain have an R challenger too? Perhaps he'll do us a favor and move to the D party as well?
Chris Simcox is challenging McPain. Chris is a founder of The Minutemen. The press will be shoveling a lot of dirt because he probably pulled shenanigans with Minutemen money that was supposed to build a border fence. I think McPain is safe in the seat until he croaks.
:^(