Alliance for American Manufacturing President Scott Paul became the fourth executive to resign from the President’s council on American manufacturing on Tuesday.

I'm resigning from the Manufacturing Jobs Initiative because it's the right thing for me to do.

— Scott Paul (@ScottPaulAAM) August 15, 2017

Paul’s tweet followed minutes after President Trump decided to take to Twitter to call those who have dropped out “grandstanders.”

For every CEO that drops out of the Manufacturing Council, I have many to take their place. Grandstanders should not have gone on. JOBS!

— Donald J. Trump (@realDonaldTrump) August 15, 2017

Merck CEO Kenneth Frazier resigned from the council on Monday in the wake of Trump’s inadequate comments about the violence that happened over the weekend in Charlottesville, Va.

Trump attacked Frazier, who is black, on Twitter following his resignation.

As with Trump’s administrative staffing woes, if he continues to employ a scorched earth policy with the top tier professional who are willing to work with him to advance his agenda, he won’t have “the best people” working with him.

We can all hope and wish the president would show a little humility, get off Twitter and stop being destructive, but this is who he is. We have yet to see the bottom.