Presume you are talking about Hillary/Trump.
I always thought that was a myth. Hillary had about about 5.5m votes ahead of Trump in just California and NY. If you take those 2 states out of equation and consider rest of America, it'll may present a different dynamic.
https://www.scribd.com/document/334553488/2016-Popular-Vote-Totals-by-State#from_embed
I can't access this from office, but something worth checking out.
I was discussing this with a mate couple of months earlier, and this is one of the resons in support of Electoral College rather than just by popular votes decision, so states like BY and Cali don't have majority sway over presidents.