This 60-second animation shows how divided Congress has become over the last 60 years

It's news to no one that Congress has had a hard time passing legislation in recent years. Some have even asserted that partisanship in Washington has reached historic levels. But how do we put the current divide in perspective? A group of researchers recently tried to quantify and visualize House partisanship in a paper published in PLoS ONE.

Produced by Alex Kuzoian. Original visualization by Mauro Martino.