Quizzing Mr Lord on his former boss’s credentials, Camilla Tominey said: “He’s a nice guy. I mean, that doesn’t necessarily make a good Prime Minister.”
“You say he’s a nice guy. Trust me, I have seen the other side of Andy,” the ex-adviser responded.
“I’ve seen people leave his office shaking when he wants something. He goes out, and he gets it, and he bats for it.”
Delving further into those memories, Mr Lord said the rows occurred “when he took the buses back under public control”.
“He had to go up against several different companies. They were fighting him in boardrooms, in courts.
“Sometimes he has to scream and shout, there is that side of Andy. He gets it.”
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