The Republicans have 8 seats, Dems have 23 seats, and the 2 Dem-leaning Independents are in this Class. With 44 seats in the other 2 classes for the GOP and Pence as VP this means the Dem's have to pick off 3 seats to get the majority. Utah Hatch, Texas Cruz, Nebraska Fischer, Mississippi Wicker, and Wyoming Barrasso are about as close as possible to being done-deals that their seats stay GOP in 2018. Picking off Corker in Tennessee would be super hard to do. Flake in Arizona could be vulnerable depending on fallout with immigration enforcement. About the only...