Nobel laureate Paul Krugman, a City University of New York professor, reacts to a federal judge's ruling that blocks a federal investigation of Fed Chair Powell. Krugman says President Trump and US Attorney for the District of Columbia Jeanine Pirro are "harassing" Powell. Krugman says the independence of the Fed is on the line. -------- More on Bloomberg Television and Markets Like this video? Subscribe and turn on notifications so you don't miss any videos from Bloomberg Markets & Finance: