Well this is if the house is at pure toss up and it’s like 5 seats that decide who controls the house WA-8 will be one of the 5 along with NE-2-MN-2 CO-6-WA-8 and AZ-2 those will decide the house.
Did you just pick a handful of random marginal House seats? Coffman's district doesn't strike me as the type to hold out until the end. It's D+2 and Clinton won it very comfortably.
I picked Coffman because people are saying he is going to lose but I don’t think so considering he was first elected in 2008 and has won hard fought races before.
Plenty of examples of that to go around.
Not to mention Nick Rahall, John Barrow, Ben Chandler, and Tim Bishop, who all survived the 2010 bloodbath but then went down in 2012 or 2014.