A U.S. senator has raised concerns about the Department of Justice's investigation into the Federal Reserve Chair, arguing that the probe could threaten both market stability and the independence of the Fed. The lawmaker is calling for Congress to launch its own investigation into the matter. This development touches on broader questions about regulatory oversight and the delicate balance between government agencies when it comes to managing financial systems. Market participants are watching closely, as any political tension around Fed leadership could have ripple effects across global markets, including sentiment in digital asset trading.