The Senate forecast is almost the polar opposite. Republicans are 5 in 6 favorites, per our Deluxe forecast, and 4 in 5 favorites according to our Lite and Classic versions. The 80 percent range of most likely outcomes runs from D's gaining 2 seats, to R's gaining 3-4. pic.twitter.com/wmFtxlVs92

— Nate Silver (@NateSilver538) November 6, 2018