The popular vote would mean that smaller states don’t have a voice? Well, the electoral college means that several larger states don’t have a voice. The EC, combined with jerrymandering, has skewed election results more and more with each passing year.
John Koza, a leading researcher in one of my research fields (genetic programming), is no longer doing computer science, but instead focusing his efforts on leading the national popular vote movement. His talks are very persuasive.