‘I choose to end this arrangement’: Economics advisor Carl Icahn quits Donald Trump administration
Billionaire investor Carl Icahn

Billionaire investor and prominent Donald Trump supporter Carl Icahn has quit the Trump administration.

"Today, with President Trump’s blessing, I ceased to act as special advisor to the President on issues relating to regulatory reform," Icahn wrote on Twitter.

Icahn had served as a special advisor to President Donald Trump on regulatory reform issues.

"Nevertheless, I chose to end this arrangement (with your blessing) because I did not want partisan bickering about my role to in any way cloud your administration," Icahn said in a public letter.

"Carl Icahn has always styled himself as the consummate outsider, but with his friend Donald Trump in the White House Icahn now has an insider's role," Forbes explained. "He is advising the Trump Administration on issues involving regulatory overhaul, helping to select the heads of key regulatory agencies like the Securities & Exchange Commission and the Environmental Protection Agency."