Looks like Britain has been bugging our political office holders for a long time. Even when JPK Sr., John F Kennedy's dad was an ambassador to Britain.
In their eagerness to trap Kennedy, the British security services had his phones bugged. Embassy cars were stopped on a pretext and covertly searched. The Charge d'Affaires, Herschel Johnson, was bombarded in Kennedy's absences with dark hints about the leaking to the Germans of the ambassador's cables to Washington. On 20 May 1940, just days before Dunkirk, the British sprang their trap. Tyler Kent, a cipher clerk at the embassy, was arrested on a charge of stealing almost 2,000 of its top-secret telegrams. The record of Kent's interrogation by Kennedy before he was handed over to the British has been uncovered by historian John Costello. The ambassador's fury is palpable. He had to admit to Roosevelt that their secret correspondence had been filched and decoded; he could not guarantee the security of the embassy's communications. He had been neatly stitched up by Churchill, who could feel sure that the most dangerous opponent of American involvement in the war had been discredited.
https:// www.independent.co.uk/arts-entertainment/the-bootleg-politician-he-could-have-anything-he-wanted-except-the-thing-he-wanted-most-so-joe-1556722.html