Billionaire activist investor Carl Icahn is endorsing Donald Trump for president in 2016. 

"He's the best by far of any of these guys," Icahn told Neil Cavuto on FBN today. 

"I disagree with Trump on certain issues and I'm gonna talk to him about it. But right now he's definitely my pick. There's nobody close," he said.

Watch Neil's full interview with Icahn, tomorrow at 12p ET on "Coast to Coast" on Fox Business Network. 

When he launched his presidential campaign in June, Trump said he would bring prominent business leaders into his cabinet. 

Icahn said last month that he would accept Trump's offer to be Treasury Secretary.