CNBC's Eamon Javers reports that the Department of Justice served grand jury subpoenas to the Federal Reserve as part of an investigation tied to Chair Powell's June Senate testimony about the Fed's building construction project. Powell issued a video statement calling the probe a pretext and framing it as a threat to the Fed's ability to set rates independently. The segment also notes market rate-cut expectations are falling and the long end of the Treasury curve is near early-September highs.