So what is the point? A discussion about what could be possible? He could dress up as Osama bin Laden and crash his car through the White House gate but that doesn't mean that it's something that Secretary Clinton believes is necessary for her campaign.

Similarly, yes, he could delete the emails after being told they were part of an investigation, but that would lead to unwanted consequences. Could he have deleted them before any investigation started? Sure, then it would just be a cloud of suspicion, but no legal ramifications.

My original point was that as soon as Clinton agreed to turn over the emails, it was in the State Department's ballpark to determine which were eligible for disclosure, as the emails were written during her time at State and ostensibly dealt with State business. Not sure why you felt you had to argue that she had the capability of just destroying her servers. If she had done that, we wouldn't be having this discussion because she likely wouldn't be in the race.