I think he’s wrong by 50. My guess is a pick up of 50 seats in the House.
I think that's much more reasonable and likely. I think 40 is a virtual "sure thing". I believe 50 to 60 is possible if things stay the same or get a little worse, economically. I believe the best - if all the planets align - that the GOP can help for is near 70 seats, which is extremely unlikely.