I thought this was going to be about making a difference but its the same old status-quo Democrat neo-lib take of they are more bad so we deserve to be in charge. It's like the country has been in death throes since July of 2016.
My guess has to do with rotation of fluid stratum. Similar to the sun's differential rotation. It honestly sounds too simple of an answer leaving me wondering why this wouldn't have been expected.
Only if you have been denying it your whole life.