Both the UK and US experienced foreign meddling through social media disinformation campaigns sponsored by foreign powers in 2016, a trend that shows no sign of abating. The American backlash against this meddling yielded the greatest challenge to executive power in decades through Trump’s impeachment. The response in the UK – a committee report that Boris Johnson’s Downing Street has procedurally suppressed – has been far more muted. This apparently poses an ominous paradox for UK governance: the UK has fewer formal mechanisms (a written constitution, robust judicial review) for checking a perhaps-tainted democratic will. Yet a closer look reveals a more subtle parallel: in the UK leadership selection mechanisms insulate actual state power from the electorate far more than in the US. The UK reaction may reflect particular political realities; a more general lesson is that foreign meddling must be considered in its broader constitutional and political context.