In the context of a rapidly approaching deadline on increasing the ceiling on U.S. Government debt, Barak Obama found himself rebuffing pressure from anti-tax “Tea Party” Republicans in the U.S. House while needing enough non-partisan credibility for his warning of an impending economic catastrophe to be believed by the citizenry and Congress. That is to say, Obama’s failure to stand back as the Democrats and Republicans in Congress duked it out on spending cuts and tax increases mitigated his stature or credibility as Presider in Chief. An editorial in the New York Times refers to this role of the president as "the utimate guardian of the constitutional order."[1] To preside is to be oriented to the viability of the whole. This means stepping in when the system itself is at risk. Partisan involvement compromises the ability to function in a failsafe capacity, as the "ultimate guardian."
The full essay is at "Presiding over a Debt Precipice."