[the_Watchman]

I think some of these people think that becoming a “candidate” will help innoculate them from prosecution. If Holder were to announce just prior to an indictment, then the MSM would pile on that the legal action was POLITICAL!!

[Reily]

I think that probably the case. He can’t possibly be so delusional to think there’s this unmet demand for Eric Holder to be president.

[jjotto]

...these people think that becoming a “candidate” will help innoculate them from prosecution...

That's the right answer! He may be also trying to position himself as a VP candidate, which is not far-fetched at all.