Later that evening Jesse Binnall, an outside counsel to Trump’s campaign who had sued to overturn the result in Nevada, replied to the group asking for a formal agreement that he could sign to authorize the work. Among those copied on Binnall’s email were Powell, retired Army Col. Phil Waldron, who later circulated a PowerPoint presentation proposing the seizure of ballots, and Doug Logan, whose company Cyber Ninjas led a Republican review of the election in Arizona.