I was trying to find out more about districts who voted for one party for president and the other for House. We have data on this for 1972 to 2016. I am asking because I'm researching polarization.
According to preliminary results, Biden is ahead by 3.7 points nationally and Dems have narrowly held a House majority. Biden has been declared the winner as well.
How many districts split their tickets for president and House? And did this beat the low in 2012 or 2016?