WWW.ACEPIXS.COM . . . . . ....April 19 2008, Downingtown, PA....Democratic presidential candidate Senator Barack Obama (D-IL) made a whistle stop at the Downingtown Rail Station where he addressed a rally of his supporters.....Please byline: KRISTIN CALLAHAN - ACEPIXS.COM.. . . . . . ..Ace Pictures, Inc: ..(646) 769 0430..e-mail: info@acepixs.com..web: http://www.acepixs.com