Britain has hatched a secret plot to convince president-elect Donald Trump to advance its interests, it was reported Sunday.

The cloak-and-dagger scheme was exposed when someone leaked a message from the country’s US ambassador saying Trump would be “open to outside influences’’ if Prime Minister Theresa May cozies up to him, according to the Sunday Times of London.

The report quotes sources saying top politicians, military leaders and heads of intelligence agencies are cooking up ways to manipulate his views on issues including NATO, Iran, Russia and immigration.

British officials hope to steer Trump’s thinking in ways that would benefit their country.

The memo, written by Sir Kim Darroch, cites the “electoral earthquake’’ that propelled Trump to power and sparked “fear and loathing’’ in Washington, the newspaper said.

In a phone call with Trump on Thursday, Darroch expressed a desire to renew the special relationship enjoyed by Margaret Thatcher and Ronald Reagan. Foreign Secretary Boris Johnson said

Britain promised that it would not attend a European Union “panic meeting’’ to discuss Trump’s victory, insisting it was “an act of democracy.’’