sentences:  The original conflict of interest led to a criminal inquiry of Cox by the U.S. Department of Justice, and destroyed the credibility of his investigation of the agency to such a degree that Cox was forced to give up his committee seat.In 1947-8, he served on the Herter Committee.In June 1949, during debate on the Housing Act of 1949, Cox (then 69) started a fist fight on the floor of the House with that chamber's Dean, Representative Adolph J. Sabath (then 83).