Congress itself should prosecute those it charges with contempt

If Steve Bannon and other former aides to President Donald Trump refuse to testify before the congressional committee looking into the events of Jan. 6, should they be held in contempt? Plenty of partisans seem to be rooting for this result. I’d suggest to this and future Congresses that witnesses should be held in contempt only if the members are willing to return to the days when senators and representatives did their own dirty work.