Public insults of a cabinet member are demeaning to the Presidency and demeaning to the person being targeted. Definitely the President should talk to him in private and ask for his resignation if he’s that unhappy with his performance.
OMG! Demeaning to the presidency?
Well we can’t have any of that now can we? While sedition and treason is running High While the Deep State plots the coup and even assassination of the legitimate president of the United States, how dare he speak in rough, rude or unpolite terms. Get over it you all this is a different period in our history and this is a different president and we will be taking you and all your stupid slimeball trolls down too!