Bagpipers march up Fifth Ave. during the St. Patrick's Day Parade, Tuesday, March 17, 2015, in New York. (AP Photo/Mary Altaffer) (AP Photo/ Mary Altaffer)
Paul McFadden of Donegal, Ireland, seems to stand on the shoulders of a leprechaun while taking a picture before the start of the parade. (AP Photo/Seth Wenig) (AP Photo/ Seth Wenig)
A group from County Kerry, Ireland, marches up Fifth Ave. during the St. Patrick's Day Parade, Tuesday, March 17, 2015, in New York. (AP Photo/Mary Altaffer) (AP Photo/ Mary Altaffer)
Neil Martin, right, and Martin Brown, both from Belfast, Ireland, watch the St. Patrick's Day Parade in New York, Tuesday, March 17, 2015. (AP Photo/Seth Wenig) (AP Photo/ Seth Wenig)
The Grand Marshall of the St. Patrick's Day Parade, Archbishop Timothy Dolan, marches up Fifth Ave. past St. Patrick's Cathedral. (AP Photo/Mary Altaffer) (AP Photo/ Mary Altaffer)
Marchers walk past a group of protesters during the St. Patrick's Day Parade The group was protesting the exclusion of LGBT groups from the parade. (AP Photo/Seth Wenig) (AP Photo/ Seth Wenig)
Melissa Soucy, center, of Morristown, N.J. waves at the participants marching up 5th Ave. (AP Photo/Mary Altaffer) (AP Photo/ Mary Altaffer)
People cheer as participants march up Fifth Ave. during the St. Patrick's Day Parade, Tuesday, March 17, 2015, in New York. (AP Photo/Mary Altaffer) (AP Photo/ Mary Altaffer)
Mareike Stibbe, left, of Waldeck, Germany and Justine Poloczek of Marburg, Germany watch participants march up Fifth Ave.. (AP Photo/Mary Altaffer) (AP Photo/ Mary Altaffer)