Palin organizer: She will announce her campaign in September

Peter Singleton, an activist who is helping organize former Alaska governor Sarah Palin's September tea party rally in Iowa, insisted that Palin will announce her candidacy for president by the end of September.

“Labor Day will kick off the Republican campaign for the nomination,” Singleton told the National Review. “She is going to make a major, major speech.”

Though he is the Iowa "Organize4Palin" representative, it doesn't seem that Singleton has any inside information about Palin's campaign or about any deeper purpose her September 3 appearance at the Iowa tea party rally.

“I believe that she will run,” he said. “I can’t see her sitting this election out.”

Singleton has long been making the rounds in support of Palin, but just how much contact he has actually had with the former Republican vice presidential nominee is unclear. In April, he told the Wall Street Journal that he had never met Palin or made contact with her team, but several Iowa Republican leaders the paper spoke to insisted that Singleton had an inside track on Palin's plans.

Connie Armstrong, a local GOP organizer who met Singleton at the Dem Moines Conservative Principles Conference this spring, was one such leader.

"He kept saying 'we,' but he wouldn't clarify who 'we' was," Armstrong said. "My gut feeling is he's working on her campaign."

Palin restarted her "One Nation" bus tour just in time to roll in Iowa for the weekend of the Ames Straw Poll. Recently, she released a video targeted to Iowans, which ended with "See you in September." Ahead of her September visit to the early primary state, there have been massive ad buys and a media blitz planned for Palin.

Singleton, a California lawyer who has crisscrossed Iowa for months, not only has confidence that she will run — he thinks she'll win, too.

“When she gets in the race, I would not want to be the other candidates, who have shamelessly whispered to Iowa Republicans for months that she is not running,” he told the National Review. “There will probably be some defections.”