You are using an older browser version. Please use a supported version for the best MSN experience.

This 60-second animation shows how divided Congress has become since 1949

In 2015, researchers studied House partisanship from 1949 to 2011. They wrote about their findings in a paper published in PLoS ONE and visualized the divide between Democrats and Republicans.

More From Business Insider

image beaconimage beaconimage beacon