… Let me suggest a different way to assess rationality: people voting for the party they trust more on the issue that is most important to them. So, if you’re an environmentalist who trusts Democrats more than Republicans on the environment but vote for the GOP, you’re irrational. If your pet issue is immigration reform, and you have more faith in Republicans on that issue, and you vote Republican — you’re rational.
By this simple (if imperfect) definition, voters have been pretty rational. This dynamic also points to a small Republican advantage in the national environment for 2014. CONT.
Harry Enten, FiveThirtyEight