The prime minister insists he was unaware of "any of the specific concerns" relating to Sir Gavin Williamson's tenure as defence secretary and chief whip after his resignation over bullying claims. Rishi Sunak tells MPs at Prime Minister's Questions that he "obviously" regrets bringing Williamson back into the cabinet as he faces questions over his judgment. Report by Blairm. Like us on Facebook at http://www.facebook.com/itn and follow us on Twitter at http://twitter.com/itn