Should be Democrats +5:
NH, VA, MN, NM, and CO, holding LA
I doubt Coleman will lose to the clown or the trial lawyer. NH, VA, and CO are pretty much in the bag, barring a Hillary collapse as the nominee or gaffes by any of the D nominees. NM is probably leans Democratic, but top-ticket atmospherics could change that. I agree with on LA. Landrieu starts off as the favorite, but this is another red state where, once again, Hillary could push the Democratic nominee below 50%.
Oregon and Alaska are two other states to watch closely. If Merkley and Begich are the D nominees in these two states, it's quite possible the Democrats could pick up another two seats here. If the Democrats pull of a second straight near-sweep of close Senate races, the new Senate will be 56-42-2 in favor of Democrats. Chuck Schumer as majority leader could easily nab the 2-3 Republicans needed to pass major reforms.