Consider this jaw-dropper: in a year that was supposed to be awful for Senate Dems, zero Democratic incumbents lost this year. Literally, none.

And now that all the Senate races are in, the Democratic stronghold in the Senate is actually BIGGER than before. If Maine's Sen.-elect, Angus King (I) caucuses with the Senate Democrats, which has been widely expected, then King would be the 55th member of the Senate Democratic caucus and give the party a net gain of two seats in this campaign cycle.