How many Americans truly hate the other political party? About 78 million

Conservative radio host Erick Erickson had some thoughts Monday morning. Among them were that the “political left is becoming the American ISIS” and that the United States should begin talking about secession.

But one particular claim caught my eye:

We have 320 million people who hate each other and the left shows no signs of toning down rhetoric after last week’s mass assassination attempt.

The idea that basically everybody in America is so politically polarized that they hate the other side is one that many a political analyst has invoked at a time like this. It’s certainly true that the vitriol seems unprecedented and that there is very little middle ground — that you either love the GOP and hate the Democratic Party, or that you love the Democratic Party and hate the GOP.