Labor could win power at the next general election with a landslide majority of more than 400 seats, according to the latest YouGov mega-poll.

The poll of 18,000 people predicted Sir Keir Starmer’s party would win a majority of 154 seats in parliament, almost double the number achieved by Boris Johnson’s Conservatives in 2019.

The poll predicted Labor would win 403 seats and the Conservatives 155.

Watch live: Tory big shots expected to lose seats

If correct, the result would be a worse defeat for the Conservatives than under Sir John Major in 1997, when the rise of Sir Tony Blair’s New Labor left the Conservatives with just 165 MPs.

Key Conservatives expected to lose their seats include chancellor Jeremy Hunt, cabinet ministers Grant Shapps and Penny Mordaunt and former party leader Sir Iain Duncan Smith

There is also bad news for the SNP, which is expected to lose 29 seats, with the majority going to Labour.

The Lib Dems are targeting the Conservative heartland within the so-called “blue wall” and are expected to gain 38 seats.

This is the latest survey to predict a 1997-style defeat for the Conservatives when the national election comes.

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