[Paine in the Neck]

They're polling the Mooch against Kirk for 2016.

Wicker's not up 'til 2018.

Hoeven's playing cute about a presidential run

As an Independent, is Murkowski safe from us primarying her in 2016?

Collins? This insipid cow has got to go but I don't see any opposition to her.

[Viennacon]

Murcowski is not an independent, despite the fact that she should have been forced out of the party for a write-in campaign (goes against official party rules).
That said, she may try to avoid a primary defeat by switching before 2016.

[cotton1706]

I would think Kirk would retire after one term anyway because of his stroke.

Murkowski ran as an independent but is still a republican. So yes, we could primary her again.

Collins so far has a democrat announcing against her but no republican.