There’s a reason why many analysts and House-watchers — including some Democrats — believe that while Team Blue should pick up around five to 10 House seats, they have very little chance of winning the House. The reason is that even if Democrats overperform — which would almost assuredly mean that President Obama was also rolling to a fairly easy reelection — they would still have to crack new Republican or court-drawn House maps, many of which are situated along the shores of the Great Lakes. Even if Democrats come close to maximizing their gains across the country while limiting the Republicans — a scenario much along the lines of what’s described above — the math, and the map, is daunting.
The Democrats' control of the Senate is also in danger:
[T]he Senate forecasting model gives Republicans a good chance to regain control of the Senate with an expected pickup of 6-7 seats. That is due almost entirely to the fact that Republicans are defending only 10 Senate seats this year while Democrats are defending 23 seats.
The Dish 