It's a microcosm of the larger debate about changing the nation's criminal justice system. This week, Republicans in the House took steps to block a new criminal code in Washington, D.C. which lowers some maximum criminal penalties. The law passed the city council overwhelmingly, but the Constitution gives Congress oversight of D.C.'s local policies. Lisa Desjardins reports. PBS NewsHour is supported by - https://www.pbs.org/newshour/about/funders