Allow me to issue the usual disclaimer when I write about Donald Trump: I thought he would be finished with his campaign in September 2015. All of us were wrong and now that is out of the way. But now as he appears to be marching toward the Republican nomination for President of the United States, he faces a number of problems, some of which have no easy solutions.

First, he - like any other GOP nominee - has demographics working against him. The percentage of nonwhite voters continues to climb and cumulatively well over 70% can be expected to vote for the Democratic nominee. With the past two GOP nominees only garnering about 57% of the white vote that already presents a daunting deficit to make up - especially with the possibility that the nonwhite percentage gains an additional percentage or two over 2012.

Now, Trump and his supporters like to point out that his presence in the primaries has driven up Republican turnout of white, middle class, non-college-educated voters. That certainly appears to be true, but the challenge is the message he has been using to drum up interest among this segment of the electorate. The message of exclusion against Mexicans and Muslims, the insults to women, and his support for both war and torture, are the very antithesis of what appeals to Millennials (remember, about 40% of Millennials are nonwhite) and nonwhite voters in general. In other words, for every extra white voter he may bring to the polls, he stands to lose one who will surely vote against him.

His other problem is that it will be hard to change his message as this point. He is running a maverick campaign. Ironically, even though he is winning a higher percentage of delegates than the percentage of votes he is receiving, he still rants against a "rigged system". His appeal is as the outsider, the anti-establishment, the anti-corruption, the "say-what-I-mean-and mean-what-I-say" candidate. Should he receive the nomination, he will be none of the above. He will be the nominee of the very machine, elite, and establishment he is fighting. If he moderates his positions and modulates his tone, he will no longer be the Donald Trump that he has been his whole lifetime. If he becomes, as his new handlers suggest will happen, the more "Presidential" Donald Trump, he will have sacrificed the very brand that has gotten him this far.

So, in short, if he continues to appeal to alienated white voters, he will beat the drums to get out nonwhite pro-Democratic voters. And if he changes his message and tone for the general election, he loses the essence of his candidacy and persona. What is poor Donald to do? Simple: run against "Corrupt Hillary". It seems to have worked against "Lyin' Ted".