By Luc Cohen NEW YORK (Reuters) – Opening statements are set to begin on Wednesday in the federal trial of Tom Barrack, the private equity executive and onetime fundraiser for former President Donald Trump, on charges he acted as a foreign agent without notifying the U.S. government. Federal prosecutors in Brooklyn say Barrack, the 75-year-old former chairman of the firm now known as DigitalBridge Group Inc, worked for the United Arab Emirates to influence Trump’s campaign and administration between 2016 and 2018 and advance the Middle Eastern country’s interests. Barrack, who chaired Trump’s …