This year's US Presidential Election isn't just dividing voters on gender and racial lines.  One of the greatest chasms has opened up between college-educated whites - who overwhelmingly support Hillary Clinton - and whites without a college education - who support Donald Trump.

"It used to be that better-educated voters, particularly college-educated voters, were the rock of the Republican base," said Republican Party pollster Whit Ayres.  But Trump's sexist, racist, and xenophobic clown show has sent them packing.

Although Trump remains competitive in swing states like Iowa and Ohio, which have the largest shares of non-college whites - 72 percent in both states - Clinton leads in places like New Hampshire, Illinois, New York, California, and other states with denser suburban population of better-educated whites who are horrified at Trump's fascist demagoguery.  Virginia's growing suburban areas has made it unobtainable for the Trump campaign, which has in effect stopped campaigning there to move assets to places where it can compete.

If this trend holds, Hillary Clinton will be the first Democrat in 50 years to win the White House by adding college-educated whites to her voter base.  That'd be quite a reversal, as GOP candidate Mitt Romney in 2012 had the biggest margins of both college and non-college whites, although he lost the Presidency.  Republican candidates won both groups by smaller margins in the three elections prior to 2012.

Hillary Clinton is ahead with college-educated whites by 15 percent over Trump in this week's NBC News/Wall Street Journal poll.  That's up from her 6-point lead in September, and on track to best Mr. Romney's 14 percent.

This year's divide widened even more with the release of a video showing Trump bragging about sexually assaulting women, and might get worse with the allegations of four women who say they were sexually abused by Trump in the way that he bragged about on the earlier video.  Trump denies the allegations.

But Trump has increased his lead with non-college educated whites from 20 percent last month to 23 percent now - but still less than Romney's 26 percent that still couldn't win the election.  Two other states with large numbers of non-college whites may be much more problematic for the Trump campaign.  71 percent of whites in Nevada didn't go to college, but the casino industry is staffed by strong and motivated union workers, and they back Democrats.  Right behind that is Florida with 69 percent, but the state also has a large number of retirees who don't want their Social Security retirement and medicare checks messed with.