Why didn’t David Lammy give Corbyn a helping hand at PMQs?

The royal nativity opened proceedings at PMQs. Mrs May sounded thrilled about the newborn nipper but the Labour leader could barely conceal his ill-temper. Mr Corbyn slouched at the despatch box and forced a muttered tribute to ‘their baby’ out of the side of his mouth. He sounded like a man who’s just twisted his knee laying flowers on his mother-in-law’s grave.

But why the aversion to Supermum Kate’s non-stop sproggery? A wise Marxist ought to welcome a population explosion at the palace. The more numerous and parasitical the royals, the swifter and bloodier their overthrow.

Mr Corbyn led on the Windrush crisis and accused Mrs May of creating ‘a hostile environment’ that stoked discrimination against Caribbean workers. She chose to distinguish between Windrush immigrants (‘they are British, they are part of us’) and the illegal incomers targeted by her as Home Secretary. It’s down to documentation, she shrugged. The Windrushers deserved it but didn’t have it.