Even if Enron management attempted such a clumsy maneuver (they maintain that the ten trading days when the 401k was unavailable was necessary to effect a transfer of the plan from in-house to an outside manager), it would still only concern Enron itself, and, in all likelihood, the matter could be settled in civil court.
None of it should be of any concern to the Bush WH.
See, you're using common sense. How many times do I have to say it? This is politics. It matters, because a lot is at stake depending on the White House response, and how the Democrats and the media are given the opportunity to spin it.