Which Congressional races in 2018 are you most optimistic/pessimistic about?

[MarkD]

As long as we're discussing CONGRESSIONAL races (which is not just Senate races) I'll point out that if Ann Wagner gives up MO-2 to run against McCaskill, then it's not out of the question that MO-2 will be quite competitive. As I've pointed out recently to Jimmie, MO-2 was virtually a tie between Kander and Blunt, with maybe even a very small margin of victory for Kander. Trump did worse in MO-2 than Romney. Of all six predominantly Republican congressional districts in the state {2, 3, 4, 6, 7, and 8}, MO-2 is the weakest for the GOP. Cities like Webster Groves and Kirkwood, which used to be very reliably Republican, have been trending more Democratic.
As Jimmie and I have discussed, State Senator Scott Sifton (D-Sen. Dist. 1) could make the race very competitive, and would be the best person to recruit for that race in 2018.