This article in the Daily Sentinel of Grand Junction, Colorado, says the Constitution Party has suffered from being a qualified major party. The party is a major party because it polled over 10% of the vote for Governor in 2010. However, according to the article, the party would have been better off if it had remained a qualified minor party. Major parties must file many complicated campaign finance reports. The party’s reports have had errors and omissions, or have been late, so the party has been repeatedly fined, and now has a negative bank balance.
Qualified minor parties in Colorado generally nominate by convention and need not petition for ballot access for their nominees.