kEiThZ
Superstar
There is no way, as a public figure, that it shouldn't occur to you that sending images, never mind videos, is at best ill conceived, and if not career suicide, is certainly career injurious.
This is something you have to disclose in any interview for a clearance. And if sending naughty pics to a spouse or girlfriend is enough to get you denied in some instances, the idea that a current/former cabinet minister would do this with strangers should definitely be grounds for losing his/her position. That goes for shadow cabinet positions where they are often read in too.
Note that we are required to report anything that could get us blackmailed. The rule has always been, "You better tell us, before we find out." And if that's what it is for civil servants and military personnel, the bar should be at least as high for Members of Parliament.