Kelly Sadler works in a White House where the Big Man — the president — never apologizes for anything.

She need not follow Donald John Trump’s lead. All she has to do to make an idiotic story dissipate is to apologize publicly to the man she disparaged so cruelly.

The man is Republican U.S. Sen. John McCain. He is fighting a grievous illness, brain cancer. Sadler, a mid-level White House communications office staffer, was attending a private meeting when she blurted out an insult directed toward Sen. McCain.

McCain had spoken against CIA director nominee Gina Haspel. He doesn’t like her stance on torturing enemy combatants. He has urged his Senate colleagues to reject her nomination to lead the CIA.

Sadler said McCain’s objection “doesn’t matter because he’s dying anyway.”

The story won’t go away. It should go away. All the staffer has to do is to stand before the nation and say she is sorry for her disparaging remarks aimed at a genuine war hero. You see, Sen. McCain’s opposition to torture comes the hard way: He experienced more than five years of it while being held captive during the Vietnam War.

Sadler’s demeaning remark has no place coming out of the mouth of a White House official who, I hasten to add, works for the public. That’s you and me, dear reader.

The president is entitled to withhold any apology if he chooses. My hope is that he hasn’t instructed Kelly Sadler to follow him down the path of arrogance.

My fear, though, is that he has done precisely that very thing.

Shameful.