THE prime minister has warned Donald Trump she may have the upper hand in negotiations because she was head girl of her grammar school.

Theresa May said she felt duty-bound to inform the president, who has been a millionaire since she was a borough councillor, that as treasurer of the sixth-form debating society she would be no pushover.

She continued: “It was a competitive school, too. The members of Supergrass went there, if that gives you an idea of the calibre of student.

“So while he might have a 30-year record of taking advantage of anyone unwise enough to enter into any deal with him, I’m confident he won’t pull the wool over my eyes.

“Mr Trump respects that natural dealmakers’ savvy, which is why he offered me a deal which is great for Britain straight off the bat, and one I’m happy to say I’ve already signed.

“The penalty clauses don’t matter. I’ll get an intern to look at them later.”

Trump said: “I guess I own Britain now? I don’t really need it. I’ll give it to Nigel.”