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

What is happening to Roe v. Wade?

Well, this week, the Supreme Court heard arguments in a case called Dobbs v. Jackson, which challenges a Mississippi law that would outlaw abortions after 15 weeks in the state. That law itself is a direct challenge to the legal precedent set by Roe v. Wade nearly 50 years ago, which is one of the most politically important Supreme Court decisions in American history. It has driven deep polarization between the right and the left in the US and become a critical litmus test. There are very few, if any, pro-life Democrats at the national level and virtually no pro-choice Republicans at any level of government. Overturning Roe has been an animating force on the political right in the US for a generation. And in turn, Democrats have responded by making protecting Roe one of their key political missions.