U.S. Sen. Martha McSally is a supreme disappointment to me, as I once said something nice about the grace she exhibited in losing an earlier race for another vacant Senate seat in Arizona.

Now the Republican seeking election to a seat to which she was appointed is turning into, shall we say, a “conservative hack.” Why? Because she called a CNN reporter a “liberal hack” who had the temerity to ask her a straightforward question devoid of any political taint or bias.

CNN Capitol Hill reporter Manu Raju asked McSally if she supported calling for additional evidence and witnesses in the upcoming impeachment trial of Donald John Trump, the current president of the United States.

“You’re a liberal hack; I’m not talking to you,” McSally snapped at Raju. Huh? That’s how it goes? A working journalist asks a question that requires at minimum a “yes” or a “no.” She chose to bite back at someone who is merely doing his job as a correspondent for a major newsgathering organization.

This is the “media is the enemy of the people” strategy employed by Donald Trump against those in the media who continue to provide critical coverage of events and statements from the president and his allies — when it is deserved!

McSally, a backbench senator who was appointed to replace former Sen. Jon Kyl, who served briefly after the death of the great Sen. John McCain. She earlier had run against Democrat Kyrsten Sinema for a seat vacated by the retirement of Jeff Flake. That race was a nail-biter, but McSally conceded with grace and class to her opponent.

Thus, I had hope she would comport herself with dignity when she got the appointment to succeed Kyl. Silly me.

McSally doubled down on her slap back at Raju, recalling that she was “a fighter pilot.” Indeed, she is U.S. Air Force Academy grad who saw combat duty in Iraq.

Her petulant display, though, bodes grimly for the state of political discourse at least where it involves this federal legislator. Perhaps she is feeling the heat of sagging poll numbers in Arizona, where she is trailing possible Democratic challenger Mark Kelly, a former shuttle astronaut.

Whatever the case, Manu Raju — seeking a simple answer to a direct question — didn’t need the high-profile slap in the face by Sen. McSally. Bad call, senator.