I stand corrected, thanks.
There is an interesting train of thought with regard to Impeachment in that one does not have to currently hold office to be impeached. Hillary, Øbama, etc. could be Impeached for past actions that fit the requirements for Impeachment, e.g. high crimes and misdemeanors, for the sole purpose of precluding them from holding future office. But without a chance for the necessary 2/3 Senate vote, it would be symbolic at best. OTOH, if anyone was to try that, it would be the RATs.