It was the leadership contest that finally ended Margaret Thatcher's premiership - even though she won in the first round. The year was 1990, when the veteran prime minister took on her challenger Michael Heseltine but failed to deliver the knockout blow.

Patrick Maguire in for Matt Chorley speaks to Conservative peer and pollster Lord Hayward, who marked the books for the first ballot and knew how widespread disenchantment with the Iron Lady had become.

Plus: Columnists Alice Thomson and Robert Crampton discuss a warning from one of the "godfathers" of AI, whether police should attend mental health cases, and why khaki is the new black - and what it's got to do with President Zelensky.

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