Another paid speech raises questions about Hillary Clinton campaign

Former Secretary of State Hillary Clinton has accepted another paid speech in March, raising speculation that any announcement about her candidacy won't come until after that.

Clinton will deliver the closing keynote address at the American Camp Association, a group of 3,000 summer camp and out-of-school-time professionals, on March 19 at the group's conference in Atlantic City. Her fee hasn't been disclosed, but the association's website is for the first time in its history selling VIP tickets to her speech.

Ticket holders "will occupy the first few rows and the rest of the seats will remain free and open to the attendees," and the site admits that the ticket sales will be used "to help subsidize the amazing closing keynote."

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Eighty tickets in rows two through four are selling for $500 each, and the first 20 people to buy will get a free copy of Clinton's most recent book, "Hard Choices." Another 200 tickets are available at $100 each for seating in rows five through 12 of the room.

Clinton has said she'll make a decision on a presidential bid in early 2015, although it is unlikely she would continue to give paid speeches once she announced her campaign. Rudy Giuliani, the former New York City mayor who ran for president in 2008, said he would stop accepting invitations for paid speeches once he ran for president, though he continued to do some speaking engagements after announcing his candidacy. Former Arkansas governor Mike Huckabee also delivered paid speeches during the 2008 campaign, saying at the time, "unlike people who are independently wealthy, if I don't work, I don't eat."