A week ago, I wrote an article discussing Trump and the belief that he was a better option for Republicans than Hillary Clinton Hillary Diane Rodham ClintonJeff Flake: Republicans 'should hold the same position' on SCOTUS vacancy as 2016 Momentum growing among Republicans for Supreme Court vote before Election Day Warning signs flash for Lindsey Graham in South Carolina MORE, and that he could be molded into a better candidate. In part, that article was mostly for anti-Trump Republicans and their continued public distrust and dislike of Trump. A part of me would still like to believe that Trump can be molded into a better candidate, but the question of whether or not that is capable before it's too late is one that remains up in the air.

After writing that article, I had no idea that Trump would go on a tirade attacking the heritage of the judge presiding over the Trump University case. Growing up in Texas, where there is a large Hispanic population, and also recognizing that Hispanics are America's largest minority group, I couldn't help but become uncomfortable and concerned with some of Trump's statements and how they would likely be perceived — not just by Hispanics, but other minority groups as well. And to make matters worse, Trump is now saying that a Muslim judge could be potentially biased against him, too.

I would like to see nothing more than a Republican win the White House this November, but I have to seriously ask myself if Trump is capable of doing just that. I have attempted to remain hopeful and a part of me will continue do so, but Trump's antics make it impossible for any Republican — particularly a minority — to defend him, which can only mean bad things for the future of the GOP.

Let's take a trip down memory lane. If you recall, in 1964, then-Sen. Barry Goldwater of Arizona was the GOP nominee running against President Lyndon Johnson. Goldwater voted against the Voting Rights Act and was considered by most to be extreme. Goldwater famously said, "Extremism in the defense of liberty is no vice" — and perhaps that is what Trump thinks. However, a fundamental question must be asked: Is liberty really being attacked?

Of course, there are many differences from Trump and Goldwater. Trump is concerned more about style and Goldwater was consciously concerned about policy and the identity of conservatism. However, there is one eerie similarity, and that is the complete alienation of minority voters. Goldwater's nomination led to the final massive switch of African-Americans to the Democratic Party and — just like that migration — it appears certain that the same will happen with the Hispanic community and could mean the complete inability of the Republican Party to compete within minority communities.

A party that has struggled with garnering the African-American vote since Goldwater's failed attempt at the presidency now risks repeating history with the Hispanic community — and if that occurs, one has to ask, what does that mean for the Republican Party and its ability to compete for the minority vote? I think the answer is simple: It will become extremely difficult for any Republican to court the Hispanic vote if Trump doesn't change his tone. He must not only do it for his candidacy, but it must also be done for the future of the Republican Party. This is a fight that we cannot lose and we must be careful not to allow history to repeat itself.

Singleton is a Republican political consultant who has worked on Newt Gingrich's and Mitt Romney's presidential campaigns, and most recently, Dr. Ben Carson's. He is currently the communications director for Carson and appears weekly on "NewsOne Now with Roland Martin" on TV One. Follow him on Twitter @Shermichael_.