Terrible news this morning to hear that Ivan, the eldest son of David and Samantha Cameron died overnight.
Their poignant relationship was thrust into the media spotlight when David Cameron became leader and has had a significant effect on how he has approached that job.
Ivan suffered from cerebral palsy and epilepsy. According to a statement from the Conservatives, he was taken ill overnight and died in St Mary's hospital, Paddington.
There will be many who will join me in sending their condolences to the family at a tragically difficult time.