Boris Johnson thought to be planning move to Oxfordshire

Exclusive: Sighting of ex-PM looking at schools fuels speculation he may run for former seat of Henley at next election

Boris Johnson has been spotted looking at schools and is house-hunting in Oxfordshire, prompting speculation he is considering running for his former seat of Henley at the next election, the Guardian has been told.

The former prime minister had been planning to contest his existing seat of Uxbridge, a marginal in west London with a majority of 7,200. However, Labour believes it could win the seat and if Johnson loses it could end his hopes of another run at the Conservative leadership.