 In a January 2000 appearance on the "Late Show with David Letterman", she established a rapport with the host that would continue throughout her Senate years and into her 2008 presidential campaign.Clinton formally announced her official candidacy in Purchase, New York in February 2000, adopting the simple name "Hillary" for her campaign literature.Distrustful of the press since her husband's 1992 presidential campaign and her early days as First Lady, she imposed limits on her availability to the press van following her.