snip from the NY Times article
http://www.nytimes.com/2008/02/21/us/politics/21mccain.html?_r=1&hp&oref=sloginA female lobbyist had been turning up with him at fund-raisers, in his offices and aboard a client’s corporate jet. Convinced the relationship had become romantic, some of his top advisers intervened to protect the candidate from himself — instructing staff members to block the woman’s access, privately warning her away and repeatedly confronting him, several people involved in the campaign said on the condition of anonymity.
When news organizations reported that Mr. McCain had written letters to government regulators on behalf of the lobbyist’s clients, the former campaign associates said, some aides feared for a time that attention would fall on her involvement.