Story highlights Dean Obeidallah says Trump's attack on a well qualified and impartial judge, is a shocking case of bigotry

Obeidallah: Trump is speaking on behalf of one person -- himself

Dean Obeidallah, a former attorney, is the host of SiriusXM's weekly program "The Dean Obeidallah Show," a columnist for The Daily Beast and editor of the politics blog The Dean's Report. Follow him on Twitter: @TheDeansreport. The opinions expressed in this commentary are his.

(CNN) Has Donald Trump reached an alarming new low? On Friday, May 27, during his campaign rally in San Diego, Trump ripped into federal Judge Gonzalo Curiel who is presiding over one of the two class action lawsuits pending against Trump University and Trump, personally, for allegedly defrauding thousands of people out of money in connection with the now defunct school.

Trump dedicated an incredible 12 minutes of his campaign speech to slam Curiel. First, Trump demanded the judge recuse himself because he was a "hater" who had been nominated by President Obama. Then, only a short time after the crowd had been chanting "build that wall," Trump told his rabid fans that Curiel was a " Mexican ." But then Trump added, "I think that's fine." (For those who care about actual facts, Curiel is not Mexican; he was born in Indiana.)

If Curiel's Latino heritage was "fine," then why did Trump bring it up at all? Simple: Trump was telling his supporters that Curiel is not one of us, rather he's a "Mexican." He's an other. This has been a central theme in Trump's divisive presidential campaign. After all, Trump kicked off his campaign last year claiming -- despite having no factual support -- that Mexico was sending "rapists" and people who are "bringing drugs" to our country.

Republican politicians slamming federal judges is nothing new. We have seen it time and time again with conservatives attacking "judicial activism," such as when Ted Cruz and Mike Huckabee went ballistic over the U.S. Supreme Court decision on same-sex marriage. And to be fair, Democrats like President Obama have been publicly critical of the Republicans, who until recently held a majority on the Supreme Court, and struck down portions of the Voting Rights Act in 2013.

But the difference is that both the Republicans and Democrats who have publicly criticized judges in the past have been focused on constitutional issues that impact countless Americans. That's not what Trump is talking about here. Trump is only concerned how this lawsuit will impact one, Donald J. Trump.