What would happen if the electoral map changed that much would be the Democrats would evolve and change their positions . Game theory suggests that with the rules of US politics , we will have exactly two viable parties which will each have roughly 50 % of the electorate ' s support . If it got too lopsided towards one party , that party would very likely start to faction off and split up while the other party would try to poach various factions from that party . For example , right now the GOP is made up of at least four distinct factions , that are often at odds with each other . There ' s the religious right , the antiestablishment populists , the neocon global interventionists , and the establishment small government conservatives . They may have overlap in their policies , but there are also some fundamental incompatibilities . Democrats have similar tensions . You have the Sanders Socialists , the remaining elements of Bill Clinton ' s New Way Democrats , the endangered Blue Dogs , the SJWs , and a lot more . Again , overlap , but with some fundamental incompatibilities . Republican ' s coalition has been held together through animus against Obama and the Democrats for the last few years , but now that they run the show , chances are the fault lines will become more pronounced . Should be an interesting few years coming . I think we ' re on the verge of a political Earthquake and the political status quo that comes out of that shake up will look very different than what we see today .