OK, so I read the Power Line post.
What this comes down to is an extemporaneous statement about Koch Industry's tax status, made on the record by an administration staffer.
The blog post doesn't assert this staffer is in violation of privacy laws because the authors don't know. Apparently, an internal WH investigation took place. But so far the Administration has refused to release documents under FOIA without a court order, claiming Executive Privilege.
Those are the facts. If it does turn out that this staffer accessed IRS tax records and revealed private information illegally, it seems reasonable that he could be charged. But this doesn't mean Obama is personally responsible - or even liable - for that event because there's nothing linking the President to ordering this release. At best, we have a President claiming Executive Privilege to limit release of documents - indicating a possible cover up. Or perhaps an unwillingness to release anything.
The Federation of American Scientists wrote a report on the historical use of Presidential Executive Privilege going back to Nixon.
Unsurprisingly, the executive branch has developed an expansive view of executive privilege in relation to congressional investigations, taking maximum advantage of the vague and essentially undefined terrain within the judicially recognized contours of the privilege. ... The executive has argued that at its core this [deliberative process] category protects confidential predecisional deliberative material from disclosure.59 Justifications for this exemption often draw upon the language in Nixon I that identifies a constitutional value in the President receiving candid advice from his subordinates and awareness that any expectation of subsequent disclosure might temper needed candor. (Page 8)
As the report notes, each President has expanded the scope of Executive Privilege with each administration. Obama may simply be attempting to protect and expand this privilege for the next President in line by refusing any and every FOIA attempt.