From NBC's Kelly O'Donnell
Democratic Leader Nancy Pelosi has not yet received any formal request yet from Rep. Anthony Weiner concerning a leave of absence.
Various aides have sorted out details on how this works and say that Pelosi would be required to sign the request. The Speaker's Office or Republican Leader would not be involved.
Weiner sources say they expect the request by day's end and referred to it as a "form" rather than a letter. It would be a perfunctory step rather than an explanation of Weiner's intentions.
Sources close to Weiner will not provide information about his location but did rule out Washington, D.C.