The president of Finland is towering, lean and athletic and holds a doctorate from the London School of Economics. So I am not entirely convinced when Alexander Stubb tells me that he is struggling “to put sentences together” after an overnight flight from Florida and a day spent with Donald Trump.

Sure enough, Stubb has lost none of his verbal fluency as he describes his encounter with America’s president, and how it has left him guardedly optimistic about the next moves in Ukraine and the strength of the Atlantic alliance.

Instead of fretting about Trump, Stubb believes that Europeans should “calm down, take a nice bath, take a sauna, take a deep breath” and “engage rather than disengage”. He is in town presumably to pass on just that message to Sir Keir Starmer.