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

This week's question, what are the implications of the Supreme Court's decision in the case of West Virginia v. EPA?

It's been a busy term for the Supreme Court, topped off this week with a ruling on the EPA's ability to regulate carbon emissions under the Clean Air Act.

The Supreme Court ruled that the EPA did not have the properly congressionally delegated authority to regulate carbon emissions. This will hamper the ability of the Biden administration to act on climate change in the absence of congressional action, which we do not expect. And more broadly could have implications for other agencies, such as the Securities and Exchange Commission and the Federal Trade Commission.