Jon Lieber, head of Eurasia Group's coverage of political and policy developments in Washington, shares his perspective on US politics:

How are the rules on gun ownership changing in the US?

This has been the most consequential week for regulations on gun ownership in the US for many years. In response to two recent high-profile mass shootings in New York and Texas, the Senate this week passed a bipartisan bill that restricts access to gun ownership by preventing people convicted of domestic abuse against a romantic partner from purchasing a firearm. And also increases funding for mental health, school security and incentivizes states to adopt laws that prevent people who are in mental distress from purchasing a gun.