What does the Supreme Court ruling mean for the SNP?

<div>Starmer and Sunak have today come up against each other at PMQs for the first time since the Autumn Statement. It was an occasion dominated by questions from the Scottish Nationalists on the decision handed down by the Supreme Court ruling against a new independence referendum. <br> <br> James Forsyth and Isabel Hardman discuss. <br> <br> Produced by Oscar Edmondson. <br> <br> </div>