Senators get elected at best about 70% to 30% in votes also so assume that only 70% of that 38.4M people actually 'control' the laws. "Completely control" is a bit of an exaggeration though, I think you mean not allow new laws to get passed. Having a small population with the ability to prevent new laws is less concerning to me than a populous majority with the ability to pass laws. New laws should have broad support and broad appeal before getting enacted. Due to the internet there is much more spread of culture and thought between states than ever before and I think we could see much more laws getting passed very soon if democrats and republicans, and the media, could stop acting like every single day is election day again and are contrarian to every single word that comes from the other party.