"In November 2003, there was a power failure with one of the Sequoia machines in San Jose, California. It was repaired by unknown technicians in the middle of an election without any supervision from county officials. According to the San Jose Mercury News, no one on site could say what the technicians repaired or changed. Then, in March 2004, Sequoia voting machines failed to record nearly seven thousand votes in Napa County, California, because voters used the wrong ink on optical scan ballots. The glitch affected the outcome of numerous races in all levels of government as well as ballot initiative measures."