With all precincts reporting as of 7 a.m. Wednesday, only 278,092, or 46.2 percent, of voters statewide supported the measure, compared to 323,732 and 53.8 percent who voted against it.

“Today’s vote proves what we’ve been saying all along — Proposition 1 was a bad bet for Idahoans,” said Ken Andrus and Ernie Stensgar in an emailed statement Tuesday from Idaho United Against Prop 1. “Voters sent a clear message tonight. Idahoans do not want a statewide expansion of casino-style gambling.”

Treasure Valley Racing, the company that owns Les Bois park and funded the ballot initiative, thanked supporters for trying to help them “revive Idaho’s live horse racing industry” in their own statement.

“We’ve said from the beginning this campaign was about nothing more than putting horses back on the tracks, growing the economy, providing support to public schools and helping rural communities across the state,” said John Sheldon of Treasure Valley Racing in the emailed statement. “We’re obviously disappointed by the results and the fact that our best efforts to revitalize the horse racing industry have been dealt another blow.”

The terminals allow bettors to watch a tiny screen that shows a few seconds of the end of a randomly selected past horse race. Prop 1 would have allowed unlimited numbers of the machines at one location in each of Idaho’s 44 counties that hosts eight days or more of live horse racing, including Greyhound Park in Post Falls.

The Idaho Legislature briefly allowed the use of the machines before banning them in 2015 after seeing their similarity to slot machines. Les Bois Park, formerly Idaho’s largest horse-racing venue, shuttered after that. Les Bois Park owners Treasure Valley Racing were the sole funders of the campaign to Save Idaho Horse Racing, while Idaho United Against Prop 1 received millions from the Coeur d’Alene Tribe.

Proposition 1 received enough signatures in July to be on the Nov. 6 ballot. Backers and opponents raised more than $12 million combined.