As a consequence of her leadership, the Conservative Party is in some ways weaker than it has ever been. Turning it into an instrument of her personal will, she triggered a coup that has left every subsequent Tory leader on permanent probation. Alienating Scotland, she virtually wiped out her party north of the border and planted a large question mark over the Union. Within England, her indifference to the human costs of de – industrialisation deepened the north-south divide. The result is a hollowed-out and shrunken party that faces huge obstacles in ever again forming a government. For someone who has been described as the greatest Conservative leader since Churchill, it’s quite a list of achievements. If you wanted to shake up Britain and change it beyond recognition, Thatcher was, of all postwar leaders, the one mostly likely to have this effect.