The proposal to change how primary and general elections are conducted in Colorado has failed, based on the latest tally on Tuesday night.

Nearly 56% of voters have cast their ballots against Proposition 131, which sought to establish a top-four primary election and ranked choice voting for certain state and congressional races, as of 7:30 p.m. As of press time, vote roughly 600,000 voters opposed it, while nearly 480,000 backed it.

In a top-four primary system, the top four vote-getters, regardless of party, move on to the general election. Voters would then rank each candidate from first to last choice in the general election, and the candidate that receives 50% of first-preference votes wins. If no candidate receives enough votes for the 50% threshold, the candidate with the fewest votes is eliminated in a mathematical process until one candidate has enough votes.

The measure is backed by Kent Thiry and Nick Troiano of Unite America. Thiry is behind a number of successful election reform ballot measures in Colorado, including a 2016 measure that allowed unaffiliated voters to vote in primary elections.

Meanwhile, the measure seeking to prohibit the hunting of mountain lions, bobcats, and lynx is also losing, according to the latest results. Early numbers show 54% of the votes counted are against the ban, compared to the 45% voting in favor.

Proposition 127 would ban the “trophy hunting” of big cats, with an exception for acts of self-defense. Proponents of the measure, including the group Cats Aren’t Trophies, argue that trophy hunting is cruel, unnecessary, and violates the “fair chase” principle outlined in the North American Model of Wildlife Management, which is practiced by Colorado Parks and Wildlife. Notable celebrities including actor Robert Redford and primatologist Jane Goodall have also endorsed the measure.

Critics of the initiative, including Coloradans for Responsible Wildlife Management, argue it will do more harm to big cats than good and have expressed concerns that it may lead to future bans on other hunting activities. A coalition of sportsmen and biologists called Wildlife Deserves Better also rallied against the proposition, arguing it’s not based in science and is simply “ballot box biology”.

Here’s a roundup of other ballot measures:

• The ballot initiative that seeks to impose an excise tax on firearms and ammunition sales and allocate the resulting funds to victim services is expected to pass. Proposition KK, which was referred to the ballot by the state legislature, has 54% of the vote, according to unofficial preliminary results. The initiative would place a 6.5% excise tax on firearms sales, with the revenue earmarked for funding crime victim support services, mental health services for veterans and youth, and school safety programs.

• Colorado voters appear to reject the proposal to enshrine school choice in the state constitution. Because the measure would amend the constitution, it requires 55% voter approval to pass officially. According to the preliminary unofficial results, Amendment 80 currently is losing with 52.8% voting against it. The amendment aims to give each child between kindergarten and 12th grade the right to choose schools, including neighborhood schools, charter schools, private schools, home schools and other open enrollment options.

• The constitutional amendment to protect the right to abortion and repeal a ban on public funding for abortions appears to be headed to approval, taking a commanding lead according to unofficial results.

• Voters also passed Amendment J, which was referred by the legislature and seeks to amend the state Constitution’s definition of marriage by removing a section stating that only marriages between a man and a woman are valid in Colorado. The Amendment has so received 80%, according to the unofficial results. Like the abortion measure, Amendment J required 55% approval from voters to pass.

• Early election results showed that ballot measure creating a new role in veterinary medicine is expected to pass. Proposition 129, which establishes the position of veterinary practice associate, has so far received 407,023 votes in favor, compared to 347,961 voting against it.