Republican Senator Rick Scott and Democrat Elizabeth Warren have asked for salary information from the Fed's Inspector General, who serves as the central bank's watchdog, as they criticized the current system amid a push to make the role independent, according to a letter seen by Reuters on Tuesday. Republicans and Democrats in Congress have pledged tighter oversight of banking regulators following the collapse of Silicon Valley Bank and Signature Bank. The Federal Reserve is responsible for supervising - monitoring, inspecting and examining - certain financial institutions to ensure that they comply with rules and regulations, and that they operate in a safe and sound manner.