FILE - In this Tuesday, April 21, 2015 file photo, Democratic presidential hopeful Hillary Rodham Clinton speaks to students and faculty during a campaign stop at New Hampshire Technical Institute in Concord, N.H. The acting chief executive of the Clinton Foundation is acknowledging the global philanthropy made mistakes in how it disclosed its donors amid growing scrutiny as Hillary Rodham Clinton opens her presidential campaign, Sunday, April 26, 2015. (AP Photo/Jim Cole, File)