 With the investigation of Clinton's possible adultery, critics of Starr believed that he had crossed a line and was acting more as a political hit man than as a prosecutor.In his deposition for the Paula Jones lawsuit, Clinton denied having "sexual relations" with Monica Lewinsky.On the basis of the evidence provided by Monica Lewinsky, a blue dress with Clinton's semen, Ken Starr concluded that this sworn testimony was false and perjurious.