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NBC/Politico debate moves to September

The Ronald Reagan Presidential Foundation, along with partners NBC News and Politico, today will announce that it's moving its GOP presidential debate -- originally scheduled for May -- to the fall. The debate now will take place on Sept. 14.

The reason: So far, few prospective Republican candidates have formed exploratory committees, and none has formally announced a presidential bid.

“Although there will be a long and impressive list of Republican candidates who eventually take the field, too few have made the commitment thus far for a debate to be worthwhile in early May," said John Heubusch, the Reagan Foundation's executive director. "The Reagan Foundation’s first Republican presidential primary debate will move to the fall, allowing enough time for the full slate of candidates to participate.”

The NBC/Politico debate will be moderated by NBC's Brian Williams and Politico's John F. Harris.