David Cameron has failed to resist the lunchtime lobbyists' lure | Simon Jenkins

In opposition, he saw the scandal coming. But in office the PM has cosied up to corporate figures like Lynton Crosby

I chat; you lobby; he is corrupt. It is all persuasion. When Lynton Crosby's clients in the tobacco industry saw him land a big job advising Downing Street, they must have whooped with joy. When Whitehall was about to apply tough curbs on tobacco labelling, Downing Street instantly objected. The clients must have cried, "Attaboy, Lynton!"

In the Commons on Wednesday, David Camero...