White House spokesman Jim Morrell and Don Larson, a spokesman for the North Dakota governor's office, say they don't know anything about such a list.

"This is the first I'm hearing of it," Morrell said when contacted Wednesday.

But two sources close to Tuesday's ticket distribution confirmed the list exists and includes a handful of names of people who were not to receive tickets to today's event at North Dakota State University's Bison Sports Arena.

The list was supplied to workers at the two Fargo distribution sites, along with tickets and other forms citizens were asked to fill out upon receiving them. People who handed out tickets had copies of the list at their tables to determine if anyone should be denied access, both sources said.