“For the first time, our internal race-by-race model estimates a GOP gain of over 40 seats. We are revising our House forecast to a Republican gain of at least 40 seats, the minimum to give them majority status, and very possibly substantially more… By the time we release new House ratings this week, eight Democratic open seats will be in the Lean or Likely Republican columns, 45 Democratic seats will be in the Toss Up column, and 30 seats will be in the Lean Democratic column, for a total of over 80 Democratic seats at substantial risk.”