As those states and others in the South and West become more diverse and educated, they will become harder for the Republican Party - in its current form - to win.
Mara LiassonDonald Trump's staffing up a pretty traditional, very conservative Republican government, not a populist outsider government, at least not yet.
Mara LiassonSenate races have tightened along with the presidential race. Watch to see how many Republican Senate candidates outperform Donald Trump - and how many hang on to their seats in states that he loses.
Mara LiassonMitt Romney got 59 percent of the white vote in 2012, considered by many to be a high-water mark with this demographic group. Can [Donald] Trump win a higher share of white voters than Romney and get more of them to turn out?
Mara LiassonRepublican candidates have won whites with college degrees in every presidential election since polling began.
Mara LiassonThe president is under 50 percent approval ratings in all the battleground states. So, you could say that President Obama is defying gravity by still being in a dead heat with Mitt Romney. And one of the reasons that he is, is because the changing face of the electorate are giving him a small boost.
Mara Liasson