LAWRENCE, Kan. (AP) — A steady stream of visitors has been filing into the Robert J. Dole Institute of Politics in Lawrence to wish the former U.S. senator a happy 90th birthday. Monday's event on the campus of the University of Kansas featured cake and giant greeting cards. Dole himself was not in attendance. Visitors recalled Dole's leadership and ability to compromise for the greater good. The Russell native served in the Senate from 1969 until he resigned in 1996 to run for president as the Republican nominee, eventually losing to Democratic incumbent Bill Clinton. Dole is a World War II veteran who served in Europe, where he was severely wounded in battle in Italy.