Tories and Labour on course for lowest share of the vote since 1945

‘Labour and the Conservatives down to their lowest share of the vote since Liz Truss was in office’: Keir Starmer and Rishi Sunak during an election debate on June 4. Photograph: Getty Images

Labour and the Tories are on course for their lowest combined vote share since the second world war, as the latest Opinium poll for the Observer shows a shift away from the main parties.

With most the parties having now unveiled their election manifestos, Labour has maintained a dominant 17-point lead over the Tories with less than three weeks to go until polling day. However, Reform and the Lib Dems are up two points each.