Summary: President Biden marked his first year in office on a downbeat note: low approval ratings, a defeat of the Democrats' voting rights bill in the Senate, and the Build Back Better Bill stalled. But perhaps Biden's biggest political concern is how he fares within his own party. For a look at why this is crucial, along with some historical context, Special Correspondent Jeff Greenfield joins. PBS NewsHour is supported by - https://www.pbs.org/newshour/about/funders
