Less than three weeks before the U.K.’s general election, Prime Minister Rishi Sunak was beset by disastrous polls over the weekend that suggest he has little chance of turning his Conservative Party’s fortunes around before the vote on July 4.

After Britain’s two main parties published their election manifestos last week, Keir Starmer’s Labour opposition extended its lead over the Tories in polls by Opinium for the Observer and Savanta for the Sunday Telegraph.

More damagingly for Sunak’s party, seat-by-seat analysis by Survation found Labour to be on course to a large majority, with the Conservatives winning 72 of the 650 seats in the House of Commons, compared with 365 at the last election in 2019.