(CNN) Every once in a while -- whether he means to or not -- President Donald Trump offers a fundamental truth about himself and his presidency. Tuesday afternoon was one of those times.

Asked by reporters what the strategy was behind his ongoing attacks against Democratic Maryland Rep. Elijah Cummings, who is African American, and the predominantly black city of Baltimore, Trump said this:

"There's no strategy, I have no strategy, there's zero strategy. ... There's no strategy, it's very simple."

Yes! It is!

Ever since Trump won the presidency -- in what is the largest upset in modern presidential history -- in 2016, there have been those among his supporters (and even among people who are less favorably inclined to him) who subscribed to the three-dimensional chess theory.

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