Pelosi's office did not immediately respond to a request for comment on how that process is going.
The foul-up by Fitzpatrick and Sessions, both of whom have been sworn in to Congress before (Fitzpatrick defeated Rep. Patrick Murphy [D], who defeated Fitzpatrick in 2006) is simple: the pair were not in the House chamber when the rest of the House was sworn in. Sessions' office sent over this statement explaining the situation:
"During the swearing in of the 112th Congress, Congressman Sessions stated the oath publicly in the Capitol but was not on the House floor. To ensure that all constitutional and House requirements are fulfilled, Congressman Sessions officially took the oath of office this afternoon from the House floor. Public records and votes will be adjusted accordingly."
Where was Sessions? He was with Fitzpatrick at an event for Fitzpatrick supporters held in the Capitol Visitors Center, a massive underground complex attached to the Capitol Building.
From the Bucks County, PA Courier Times, which covered the event:
Wednesday, a sea of about 500 supporters overwhelmed a large room in the Capitol and caught a break when the Bucks County native took the oath of office in front of them rather than on the House floor.
"That wasn't planned. It just worked out that way," said Fitzpatrick, who happened to be introducing Texas Congressman Pete Sessions while glad-handing his supporters in the Capitol Visitor Center that he secured for them when the House swearing in began.
The story has an accompanying photo of Sessions and Fitzpatrick taking their oath of office in the auditorium, where the event was being televised live.
Sessions was chair of the NRCC in 2010, charged with racking up victories like the Fitzpatrick's on behalf of the GOP. By stopping off to take a victory lap on the day the 112th Congress he helped craft began, it seems Sessions (temporarily) left himself out of it.