Today, U.S. Chief Justice John Roberts will swear in Rep. John Boehner (R.-Ohio) as the Speaker of the House. That's a routine gig for a Supreme Court chief justice, but yesterday's was unprecedented: on Boehner's request, Roberts also swore in the new Speaker's staff.

The staff oath began, "I do solemnly swear that I will support and defend the Constitution of the United States," and one of Boehner's aides told Politico's Richard E. Cohen that the move would "underscore our commitment to listen to the American people and honor the Constitution." He also characterized the event as private, low-key and press-free.

In other words, it wasn't a big deal and it wasn't about PR--presumably the aide just ran into Cohen on the street and happened to mention this quiet little thing Boehner's staff would have done even if no one knew about it. As Cohen points out, employment forms for House aides already include a commitment to support the Constitution. So swearing an oath is redundant.