Cheney’s disappointment with the former president surfaced recently in one of the informal conversations he is holding to discuss the book with authors, diplomats, policy experts and past colleagues. By habit, he listens more than he talks, but Cheney broke form when asked about his regrets.

“In the second term, he felt Bush was moving away from him,” said a participant in the recent gathering, describing Cheney’s reply. “He said Bush was shackled by the public reaction and the criticism he took. Bush was more malleable to that. The implication was that Bush had gone soft on him, or rather Bush had hardened against Cheney’s advice. He’d showed an independence that Cheney didn’t see coming. It was clear that Cheney’s doctrine was cast-iron strength at all times — never apologize, never explain — and Bush moved toward the conciliatory.”

The two men maintain respectful ties, speaking on the telephone now and then, though aides to both said they were never quite friends. But there is a sting in Cheney’s critique, because he views concessions to public sentiment as moral weakness.