Howard Lutnick, chairman and CEO of investment firms Cantor Fitzgerald and BGC Group, told the U.S. Senate Committee on Commerce, Science and Transportation that he would divest “all of my interests, my business interests, all of my assets, everything.”

Mr Lutnick has taken aim at Ireland's trade surplus, arguing it has come at the expense of the US. Meanwhile, his firm, Cantor Fitzgerald has a significant presence in Ireland, with offices in Cork, D