According to Neal Ascherson
Ullrich has strong feelings about the way Hitler came to power in January 1933, enthroned by a ‘sinister plot’ of stupid elite politicians just at the moment when the Nazis were at last losing strength. It didn’t have to happen. He constantly reminds his readers that Hitler didn’t reach the chancellorship by his own efforts, but was put there by supercilious idiots who assumed they could manage this vulgarian. ‘We engaged him for our ends,’ said the despicable Franz von Papen. A year later, in the Night of the Long Knives, von Papen was grovelling to save his own neck.