Senator Elizabeth Warren, the ​leading Democrat on ‌the Senate Banking Committee, on Wednesday ​urged the ​Federal Reserve's inspector general ⁠to examine ​whether Fed Vice ​Chair for Supervision Michelle Bowman breached the ​central bank's ​rules by delivering remarks ‌at ⁠a private Bank of America dinner for the ​firm's ​clients ⁠last month, the Wall ​Street Journal ​reported ⁠on Wednesday.