New Hampshire Secretary of State Bill Gardner has been Secretary of State for 42 years. Throughout that long tenure, he has acted to erect ballot access barriers and do what he could to keep minor parties off the ballot. He has enormous influence over the New Hampshire legislature. There have been dozens of bills over the past few decades to improve New Hampshire ballot access, and he always testifies against such bills, or else sends his chief deputy to testify against them. And those bills are always defeated.
Since he has been Secretary of State, the independent petition requirement for statewide office has risen from 1,000 to 3,000. The number of votes for a party to remain on the ballot has increased from 3% to 4%. The time for collecting signatures on the new party petition has shrunk from unlimited time, to seven months. Gardner influenced the legislature to pass a bill that forced minor party and independent candidates to file a declaration of candidacy several months before their petitions were due, thus cutting the ability of a new party to have a free choice of nominees after submitting the petition.
Under his administration, New Hampshire remains one of the very few states to forcibly deprive a party of all its registered members when it goes off the ballot. The only other states that do that are Florida, Maine, Maryland, Nebraska, North Carolina, and Oklahoma.
According to this NPR story, Colin Van Ostern is launching a campaign to replace Gardner. In New Hampshire and Maine, but no other states, the legislature chooses the Secretary of State, so Van Ostern must campaign for the Secretary of State job by influencing legislators. Thanks to Rick Hasen for the link.