A long-term problem for Democrats: a majority of the Senate now represents 18% of the country’s population.
— Dave Wasserman (@Redistrict) August 20, 2018
100 Electoral College votes are given to just 18% of the population. That’s more than enough to swing presidential elections.
And yes, that’s much of flyover country, while the majority of the nation’s population is underrepresented in Congress and for purposes of the EC.