Kemi's lipstick glistened with merriment as the oblong potato in front of her honked and hummed: QUENTIN LETTS sees Badenoch grill Starmer at PMQs

Each week Kemi Badenoch leans a little further across the Commons despatch box at PMQs, edging closer to Sir Keir Starmer . Each week he pretends to be unbovvered.