Who is the real opposition to Labour?

Nigel Farage tried to claim at the start of Thursday’s TV debate that Reform was the real threat to Keir Starmer, given it has just passed the Conservatives in the polls (more on that here). Are they the new party of opposition? And what sort of tactics will the Tories use to try and claw back voters they are haemorrhaging to Reform?  Katy Balls speaks to Isabel Hardman and Chris Hopkins, director of Savanta.