Sir Keir Starmer has dismissed a jibe by Tory leader Kemi Badenoch over an online petition calling for another general election, as the pair clashed over Labour's tax rises.
Badenoch said the petition on Parliament's website showed "two million people asking him to go" after Labour's first Budget since 2010.
She added that the prime minister should resign "if he wants to know what Conservatives would do" instead.
Sir Keir shrugged off her attack, saying there had already been a "massive petition" in the summer, when voters returned Labour to power.
The petition, started by a West Midlands publican who voted Conservative at July's general election, has now gathered over 2.7m signatures.