MILWAUKEE, OR - MAY 18:  Democratic presidential hopeful U.S. Sen. Barack Obama (C) (D-IL) eats ice cream with members of his family at Lew's Drive In May 18, 2008 in Milwaukee, Oregon. Sen. Obama is campaigning through Oregon and Kentucky ahead of Tuesday's primaries. Getty Images logo Getty Images 48 months ago

MILWAUKEE, OR - MAY 18: Democratic presidential hopeful U.S. Sen. Barack Obama (C) (D-IL) eats ice cream with members of his family at Lew's Drive In May 18, 2008 in Milwaukee, Oregon. Sen. Obama is campaigning through Oregon and Kentucky ahead of Tuesday's primaries.