This week, the US state of California was rocked by two mass shootings just two days apart. The massacres are just the latest in a long line of shootings that have made the US the world's number one country in gun ownership and gun deaths. The carnage pushed President Joe Biden to renew calls for Congress to act quickly on a ban on assault weapons. To get some analysis, we speak to Jaclyn Schildkraut, interim executive director of the Regional Gun Violence Research Consortium at the Rockefeller Institute of Government.