The most serious parliamentary misdemeanour that a minister can commit is to deceive MPs.

That is exactly what Keir Starmer did when he answered questions, for his last time as prime minister, on Wednesday.

Exploiting the occasion to justify his record, he told MPs that when he became UK Labour leader, “we had just lost the 2019 election, which nearly broke my party. It was the worst result since 1935, and we were found to be institutionally antisemitic.”

This statement contained a serious falsehood. Many would call it a lie.

Starmer’s predecessor, Jeremy Corbyn, swiftly issued a statement in response: “The prime minister today falsely claimed that Labour was found to be ‘institutionally antisemitic’ under my leadership. There was no such finding.”