House Speaker Nancy Pelosi's staff knew of concerns about former Rep. Eric Massa's (D-NY) since last October.
Washington Post: "Joe Racalto, Massa's chief of staff, told Pelosi's director of member
services in October that he was uncomfortable with Massa's behavior,
specifically that the lawmaker was living with several male staffers and
routinely used sexually explicit language with them. The call to
Pelosi's director of member services was prompted, according to the
source, by the fact that Massa made a lunch date with a young, male
staffer who worked in Rep. Barney Frank's (D-MA) office."