O’Leary Ventures Chairman Kevin O’Leary argues you need thick skin to handle D.C. as Elon Musk is set to leave his post in the Trump administration. #foxbusiness #elonmusk #doge Subscribe to Fox Business: https://bit.ly/2D9Cdse Watch more Fox Business Video: https://video.foxbusiness.com Watch Fox Business Network Live: http://www.foxnewsgo.com/ FOX Business Network (FBN) is a financial news channel…