Phil Gramm is an ornery old ex-Texas senator who seems to have swooped out of the most scathing H L Mencken sketch. He became McCain's "best friend in politics" – and started speaking to him every day – when they linked arms to stop Hillary Clinton's 1993 push to extend healthcare to poor Americans.

He calls for "ruthlessly" slashing government spending – but only focuses on spending on the poor. When he was told paying for healthcare plunged many 80-year-olds into poverty, he said: "Most of us don't have the luxury of living to be 80 years old, so it's hard for me to feel sorry for them."