So as of this moment... Dems flipped 44 seats & potentially up to 15 more GOP flipped 2 seats & potentially up to 2 more (ME-02 & FL-09) Best case: Dems flip 59 seats, GOP flips only 2, net Dem gain of 57 seats Worst case: Dems flip 44 seats, GOP flips 4, net Dem gain of 40 seats