[Legislurker]

Kyl was the de facto #3 before this. He is butt buddies wth McCollum so he will probably win. Backing a candidate in an internal party contet is a bit outside the pale. Lott and Kyl are old friends as well. Suprising though that Demint is going after this when he isnt the most powerful Senator from his state. Im not sure if he or Graham are the senior, but both are rather recent Senate elections since the two corpses retired. Lamar Alexander is sorta the Republicans Joe Biden in that he knows deep in his heart he and he alone should be President.

Id stay out of it, the time to "back" a leadership candidate is in the long run with checks he can put in his campaign chest and hand out to his friends.