Presidential hopeful Newt Gingrich’s campaign attacked Virginia’s GOP primary election system on Saturday for keeping him off the state’s March 6 Super Tuesday ballot, a significant setback for a candidate who has surged in popularity but has struggled to organize his campaign.

The state party said that Gingrich had failed to submit the required 10,000 signatures to appear on the ballot. Texas Gov. Rick Perry also failed to qualify, the Virginia GOP said.