Stuart Stevens:
In 1980, Ronald Reagan won 56 percent of white voters and won a landslide victory of 44 states. In 2012, Mitt Romney won 59 percent of whites and lost with 24 states. But it’s a frequent talking point that white voter enthusiasm was higher for Reagan and turnout down for Romney. Not so. In 1980, 59 percent of whites voted and in 2012, 64 percent of whites voted.
But still the myth survives that there are these masses of untapped white voters just waiting for the right candidate. Call it the Lost Tribes of the Amazon theory: If only you paddle far enough up the river and bang the drum loud enough, these previously hidden voters will gather to the river’s edge. The simple truth is that there simply aren’t enough white voters in the America of 2016 to win a national election without also getting a substantial share of the non-white vote. Romney won 17 percent of the non-white vote. Depending on white voter turnout, a Republican needs between 25 percent and 35 percent of the non-white vote to win.
A recent poll put Trump's support among whites at 49%, while only 19% among non-whites. If that holds, not only will Trump not win like Romney, it will be a worse loss. States that Romney won, like Indiana and North Carolina and Missouri, would be won by Clinton. Further, given the nature of the racist, bigoted and fascist Trump, he will spike turnout among nonwhites and Democrats of all races. That's where we get into landslide terrority, with Clinton winning Arizona and Texas, maybe even Arkansas and Mississippi. Don't believe me? Play with
RCP's Demographic turnout tool. I did, giving Trump 49% of the white vote, reducing his Latino vote to 20% while keeping their turnout percentage at 2012 levels, which is all generous to Trump. And this is the landslide for Hillary it produces: