Trump's Buddy Carl Icahn Just Bought More Herbalife and Hertz

Carl Icahn has taken some time out from his chummy relationship with President Trump to do some stock buying. The New York-based activist investor increased his holdings in Herbalife (HLF) - Get Report and Hertz (HRI) - Get Report . The Herbalife position might rub fellow billionaire Bill Ackman the wrong way - the pair have had a public feud over it.

Icahn has been tapped by the president as a special adviser on regulatory reform. Senate Democrats this week warned his involvement in the Trump administration presents an "unacceptable risk" for conflicts of interest.

This article was written by a staff member of TheStreet.