Donald Trump likes to think of himself as a great businessman, but at least one official who served under him says thats not the case at all.

Donald Trump is not a great businessman, former Homeland Security chief of staff Miles Taylor told MeidasTouch . He is a failed businessman across the board. Trump Steaks and Trump Vodka and Trump Airlines and we could go on and on.

Taylor also dispensed with the argument that the former presidents wealth is proof of his business acumen.

Al Capone was incredibly rich, he said. You can be rich and not be a great businessman. You can be a fraud. And weve seen this with Donald Trump throughout his history. Even people whove been huge supporters of his have come away saying, Hes a total fraud.

Taylor said Trump took all of his worst tendencies from the world of business with him into the White House.

And in a lot of ways, he made the U.S. government his largest failed venture yet, he said, adding that Trumps volatility and corrupt nature made it difficult for government departments and agencies to function.

I saw it in our own department, he said, where he was unable to do his job effectively because he was too focused on dealing with Trumps impulses.

I had to spend my time focused on how do we manage the president, he said. Thats not the sign of a good businessman. Hes clearly not communicating and delegating really well. Thats the sign of the exact opposite.

He warned business leaders who think Trump might be better for the bottom line that a second Trump term would be so volatile that it would be dangerous and destabilizing for the U.S. economy.

Trump on Sunday attacked his critics, and hit Taylor specifically by name as a weak and pathetic RINO, using the term for Republican in name only.

Other than seeing him on TV, I have no idea, from the Administration days, who the hell he is, Trump wrote on his Truth Social website . I assume a con man because he gets paid for talking about a subject he knows nothing about, ME.

See more of Taylors discussion below: