No polls indicate this is going to happen. He's usually right but here, I'd have to get out a map and see where people are running all over... and... the GOP dominated House has done their duty, it's the Senate that has been holding things up. People won't vote Representatives out who have been doing their job. So, then, it will be the Senators.
Representatives won't flip, I don't see Red State Senators being unseated. It looks like things will remain the same. You just want more conservative Republicans in there, someone over Flake in Az. and things like that.