I am curious about the correlation between Senate and President. I have found that Susan Collins winning by a relatively large margin appears to be an outlier.
The senate races seem closer to the president in 2016, which is my hypothesis. Based on preliminary data, excluding Georgia's regular, what is the correlation between two party Dem vote share for President and Senate in each state? And was my hypothesis correct? (The correlation was about 91%.)
I also feel the US is a quasi parliamentary democracy right now in the sense that people vote for and based on parties and not so much based on the individual candidates. That is a topic for a different question but I put this in for context.