The ad hominem attack that Trump fired him when he found out he was nuttier than a Payday bar?
Or that the candidate he supported before him before was quite literally a whore?
Sources: Roger Stone quit, wasn’t fired by Trump in campaign shakeup
Trump says he fired his campaign adviser. His adviser says he fired Trump.
https://www.politico.com/story/2015/08/sources-roger-stone-quit-wasnt-fired-by-donald-trump-in-campaign-shakeup-121177
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Roger Stone > 2016–present: Trump ‘16 and Russia
Stone served as an advisor to the 2016 presidential campaign of Donald Trump. Stone left the campaign on August 8, 2015 amid controversy, with Stone claiming he quit and Trump claiming that Stone was fired. Despite this, Stone still supported Trump. A few days later, Stone wrote an op-ed called “The man who just resigned from Donald Trump’s campaign explains how Trump can still win” for Business Insider.
Despite calling Stone a “stone-cold loser” in a 2008 interview and accusing him of seeking too much publicity in a statement shortly after Stone left the campaign, Donald Trump praised him during an appearance in December 2015 on Alex Jones’ radio show that was orchestrated by Stone. “Roger’s a good guy,” Trump said. “He’s been so loyal and so wonderful.” Stone remained an informal advisor to and media surrogate for Trump throughout the campaign.”
https://en.wikipedia.org/wiki/Roger_Stone#2016%E2%80%93present:_Trump_%2716_and_Russia