The 74-year-old investment firm founder served as a key adviser to the former US president's 2016 campaign, and was considered a top fundraiser.
Mr Barrack is accused of illegally lobbying on behalf of the United Arab Emirates during and after the campaign. A spokesman for Mr Barrack said he planned to plead not guilty. He is the latest ex-Trump official to face federal charges. Mr Barrack is charged with conspiracy, obstruction of justice and making multiple false statements to the FBI during a 2019 interview. Also charged are Matthew Grimes, 27 - who works for Mr Barrack - and UAE citizen Rashid Sultan Rashid Al Malik Alshahhi, 43, according to the seven-page indictment.
Acting Assistant Attorney General Mark Lesko said the conduct alleged in the indictment was "nothing short of a betrayal" of US officials including Mr Trump himself.
The three men are accused of seeking to advance the interests of the UAE government both by influencing Trump officials and through media appearances. While Mr Barrack and Mr Grimes were both arrested in California on Tuesday morning, Mr Alshahhi remains at large. With the announcement, Mr Barrack becomes the latest Trump aide to face criminal charges, including former campaign chairman Paul Manafort and former Trump Organization lawyer Michael Cohen.
Lingayat cleric in support of Yediyurappa says he must continue as CM
A corona-infected man wears burqa to go home, but this small mistake opened pole!
Congress, Akali Dal boycott PM Modi's meeting
Peru Presidential Election: Pedro Castillo declared President-elect winner