Billionaire Trump confidant Thomas Barrack calls his presidency "disastrous" for his business

Billionaire investor Thomas Barrack testified Monday that his friend Donald Trump's presidency was "disastrous" for his business.  

Barrack made the comment while testifying in his own criminal trial in federal court in Brooklyn, New York. 

He has pleaded not guilty to charges of acting as an unregistered foreign agent, obstruction of justice and making false statements to the FBI. Barrack is accused of trying to leverage his long friendship with the former president to sway U.S. foreign policy toward a "wish list" of priorities for the United Arab Emirates.