REDDING — At a Board of Supervisors meeting in rural Shasta County last month, Clint Curtis dropped a bombshell: A sheriff way down in Riverside was going to confiscate all the ballots from a recent election. Curtis, the county registrar of voters, was the first to announce the planned ballot seizure. Even the sheriff himself, Chad Bianco, had not publicly revealed his intentions. Later, as Bianco’s move grabbed headlines — he is a leading Republican candidate for governor — Curtis’ behind-the-scenes maneuvering remained largely unknown. The registrar had worked with the Riverside County citizens group whose fraud allegations had sparked Bianco’s investigation, even traveling 600 miles south to speak on their behalf. Shasta County Clerk and Registrar of Voters Clint Curtis poses last month in the new election observation room at the elections office in Redding. In his short time in Shasta County, Curtis, whose claims about rigged voting machines stretch back to the early 2000s, has solidified his position as a torchbearer of the election denialism movement, vowing to take his message about untrustworthy machines and …