Having used words never before heard in a Presidential inauguration address:

President Trump has face criticism for his no-holds-barred speech - confirming his stance as an anti-establishment "America First" president. Trump advisor Carl Icahn told CNBC on the afternoon of the inauguration...

"Donald surprised me coming on so strongly about the establishment. I admire him for doing that."

"I admire him for not just trying to say, 'Wow. Let's smooth it over. Let's be buddies.' I mean, he came on extremely strongly and he's giving you a look at what the future, I think, is going to be."

Icahn, Trump's special advisor on regulatory reform, said he expects the 45th president of the United States to take a confrontational approach, to some extent. Yet he argued that may be a good thing because it will promote change.

"I think you have to break up this establishment. You have to stop the perception which we have in this country that the government is at war with business, that the government doesn't like business and that's what you've had for eight years with Obama," Icahn said.