WASHINGTON (AP) — Republican presidential candidate Herman Cain's visit to Washington this week was supposed to reassure the nation's rule makers that he's ready for national office. Instead, he's struggling to manage a sexual harassment report and show that he can manage a crisis.In speeches and interviews Monday, Cain flatly has denied harassing anyone. He's attacked the news outlet that reported the issue and painted himself the victim of a "witch hunt." But later in the day, he wobbled on the details, first saying he didn't recall the incidents and later describing the details of one complaint.He was responding to a report in Politico that the National Restaurant Association gave financial settlements to at least two female employees who worked for Cain and had accused him of inappropriate, sexually suggestive behavior.