Businessman Donald Trump and his wife Melania Knauss Trump on the sidelines before an an NFL football game between the New York Jets and the New England Patriots Sunday, Nov. 13, 2011 in East Rutherford, N.J. (AP Photo/Bill Kostroun)
December 13, 2011 11:36:03 AM PST
By BETH FOUHY Associated Press
NEW YORK - December 13, 2011 --
Donald Trump says he is pulling out of a Republican presidential debate he had agreed to moderate in Iowa.