Donald John “Smart Gut” Trump’s jaw-dropping absence of self-awareness is on full display this week.

He has taken aim at the man he selected this past year to lead the Federal Reserve Board. Jerome Powell took the hit for the reeling stock market, giving Trump the headache of watching people’s retirement funds — such as mine — shrink before our eyes as investors sell off their stocks.

Chairman Powell is not giving anything back to Trump, the president complained. Trump said he is quite unhappy with the selection of Powell to lead the Fed.

For starters, the Fed is an independent agency that doesn’t answer to the president of the United States. Trump doesn’t understand that, along with all the other elements of government he doesn’t understand.

Then he said he has “a gut” that tells him more than “anyone else’s brain” can tell him.

Oh, really, Mr. President?

Well, did your gut tell you to invest in all those endeavors for which you filed bankruptcy before you entered political life? How did Trump University or the Trump Taj Mahal resort work out? Not too well.

Trump’s “gut” let him down . . .  again and again and again!