The best thing Republicans had going for them in this election was the fact that they weren't in the same party as President Obama. But it would be a huge mistake for them to act as though this was an endorsement of their policies -- a mistake they seem likely to make. A mistake that seems destined to be part of the 2016 Republican autopsy.
The important lesson from all of this is that leaders in Washington shouldn't start believing their own press releases. Go ahead and claim voters endorsed everything you stand for, but don't start acting like it's true. The American people did not suddenly decide they don't care about clean air, clean water, and a healthy climate.