All of these guys are gonna be targeted. Especially Tester, Heitcamp. McCaskill will be just delicious.
Toomey
Johnson
Kirk
Ayotte
Or Murkowski if Begich and Miller runs will be our targets in 2016
WVA open and Tester are clearly the most vulnerable ones, but once we regain majority again, it will be hard to take back since by then demographics by 2020 will favor us.
If the Florida Democratic Party weren't so screwed, I'd suggest Rubio as a target for 2016, but we've established that there isn't a Democrat in that state who is competent at statewide electoral politics.