A polished and provocative video, circulating among Tea Party activists, seeks to raise a “cavalry” to march on swing states and identifies True the Vote as a participant in the effort, called Code Red USA.
In the past year, Americans for Prosperity, an organization founded by the billionaire Koch brothers, and other Republican-leaning independent groups have sponsored meetings featuring Ms. Engelbrecht and other True the Vote speakers. A spokesman for Americans for Prosperity said that the group had hosted events including True the Vote speakers but that election integrity was not a focus of his group.
Election integrity has become a focus for other activists, including James E. O’Keefe III, a video producer known for his undercover stings of the now defunct community organizing group Acorn. He recently aimed his camera on North Carolina voters in what turned out to be a botched attempt to show that foreigners had registered.
Voter registration has occupied a contentious corner of American history for decades. The perception that voting is ripe for fraud stems in part from the condition of voter rolls in many jurisdictions. The Pew Center on the States issued a report in February finding that more than 1.8 million dead people remained on voter rolls and that about 2.8 million people were registered in more than one state. Another 12 million registrations contained flawed addresses, it said.
A leader of the conservative group Turning Point Action resigned from the organization Thursday and dropped...
