U.S. Senator Elizabeth Warren said she anticipates Janet Yellen will be a more aggressive financial regulator than Ben S. Bernanke when she succeeds him as chairman of the Federal Reserve Board.

“Yellen is making commitments in the direction of saying she understands the problem, she sees the problem, she knows what the tools are. I’m hopeful that means she’s going to act,” Warren, a Massachusetts Democrat, said of the Fed’s regulatory duties in an interview on Bloomberg Television.