I reckon this could extend to the UK dangling the idea of some kind of honorary gong in front of him and his lady wife. 'Lady Starmer sends her kindest regards to the First Lady, Mrs Trump ... His Majesty the King would love to meet her when he has a free moment away from bestowing honours on the worthy ... we value the long-standing friends of the UK very much ...'
Though Trump probably really wants a Nobel Peace Prize, even if he has to share it with someone. Starmer knows that. He's Blair to the core.