This is Insider reports at for President Donald Trump, the luster seems to have worn off Defense Secretary James Mattis.
At the end of 2016, Trump heralded the retired Marine general when he was picked for the top job at the Pentagon.
Trump is frequently referred to Mattis's Mad Dog, the Mattis has expressed an aversion to that nickname.
Friends of Mattis told CNN last year that people who know Mattis do not call him Mad Dog.
But reports have continued to emerge suggesting that Mattis is a moderating force in the administration, slow walking Trump's directives and even ignoring the most incendiary ones.
According to Politico, Trump has picked up on this dynamic and it has affected how he views the defense secretary.
Behind closed doors, Trump has reportedly started calling the revered general Moderate Dog.
It was a reporter that he is said to have been considering replacing Mattis for months.