Icahn stepped down on the same day as Steve Bannon was fired from his position of White House chief strategist. However in his letter to president Trump Icahn made no reference to recent events in Charlottesville or to Bannon, Opting instead to emphasis his role was unofficial and that he never profited from it.
1/2 Today, with President Trump’s blessing, I ceased to act as special advisor to the President on issues relating to regulatory reform.— Carl Icahn (@Carl_C_Icahn) August 18, 2017
He stated his wish to quit as motivated by the desire to avoid "partisan bickering," especially about possible points of disagreement with Neomi Rao, who was appointed by Trump to serve as Administrator of the Office of Information and Regulatory Affairs.
2/2 Here is a copy of the letter that I delivered to President Trump confirming this decision. https://t.co/ng9FJyRxlp— Carl Icahn (@Carl_C_Icahn) August 18, 2017