Yes, but the parties allegedly have used the legal system to harm other candidates' efforts at ballot access:
> In 2004, Democratic operatives were especially zealous in their efforts against my campaign. They hired private investigators to harass my campaign’s petition circulators in their homes in Ohio and Oregon and falsely threatened them with criminal prosecution for fake names that saboteurs had signed on their petitions, according to sworn affidavits from the workers and letters containing threats that were presented in court. Our petitions were also disqualified on arbitrary grounds: In Ohio, complaints submitted in court and to the office of the Secretary of State by groups of Democratic voters led officials there to invalidate our petitions. They disqualified hundreds of signatures on one list, for instance, because of a discrepancy involving the petition circulator’s signature. In Oregon, Democratic Secretary of State Bill Bradbury retroactively applied certain rules in a way that suddenly rendered our previously compliant petitions invalid.
> Democrats and their allies (some later reimbursed by the DNC, according to both campaign finance reports and a party official in Maine who testified under oath) enlisted more than 90 lawyers from more than 50 law firms to file 29 complaints against my campaign in 18 states and with the Federal Election Commission for the express purpose of using the cost and delay of litigation to drain our resources. “We wanted to neutralize his campaign by forcing him to spend money and resources defending these things,” operative Toby Moffett told The Washington Post in 2004.
> Democrats falsely accused my campaign of fraud in state after state. In Pennsylvania, they forced us off the ballot after challenging more than 30,000 signatures on spurious technical grounds. My running mate, Peter Camejo, and I were ordered to pay more than $81,000 in litigation costs the plaintiffs, a group of Democratic voters, said they incurred. In an effort to collect, their law firm, Reed Smith ,which the DNC also hired in that cycle, froze my personal accounts at several banks for eight years. A criminal prosecution by the state attorney general later revealed that Pennsylvania House Democrats had, illegally at taxpayer expense, prepared the complaints against our campaign, and several people were convicted of related felonies. A federal court in Pennsylvania ultimately struck down the state law used against me that had led to the order that I pay the litigation costs. But Reed Smith was still allowed to keep $34,000 it withdrew from my accounts, because state courts wouldn’t let me present evidence that could have permitted me to recover the money.
By Ralph Nader https://www.washingtonpost.com/posteverything/wp/2016/03/25/...