Of all the things Donald J. Trump said while campaigning for the presidency in 2016, one of the few statements he made with which I agree dealt with the Iraq War.

He called it a “total disaster.” Which it turned out to be … on so many levels.

So, who does the president hire as his next national security adviser? John Bolton, an Iraq War advocate, a premier uber-hawk and a guy known for a fiery world view that seems to require that America embark on nation-building whenever it sees fit.

Trump shoved H.R. McMaster out the door this week after press secretary Sarah Hucakbee Sanders assured us that all is well between the president and the national security adviser.

It turns out it wasn’t. McMaster actually was one of the grownups within the Trump inner circle. He is a U.S. Army lieutenant general, a battle-tested scholar. He also disagreed with Trump on a number of key issues: Russia, the Iran nuclear deal come to mind.

Now the president has brought on board a guy who agrees with him on the Iran nuke deal. He’s extremely hawkish on North Korea, too, meaning that he just might counsel the president to go to war with Kim Jong Un if an opportunity presents itself.

Gosh, I feel decidedly less comfortable knowing that John Bolton is returning to the federal government.

Bolton did say that he knows his role, that the president sets policy. His new duties will be to provide advice and counsel on national security matters.

Throughout all of this chaos, though, is the pattern already established that Trump hardly takes a moment to listen to anyone. I am left to wonder: Is the president going to heed the reckless advice that John Bolton is capable of delivering?

Oh, my. I am gnashing my teeth.