A group formed to fight Oklahoma City's new arena proposal.It happened the same day the city formally pushed the deal to voters. A self-described group of concerned citizens launched a new online campaign called "Buy Your Own Arena."| MORE | OKC City Council votes to approve special election asking for public funding for new downtown arenaThey contend the owners of the OKC Thunder have more than enough money to fund themselves. Mayor David Holt stood by the deal, saying it's the best option to protect OKC's future."This is the worst contract negotiation that I have ever seen in my public life," said Nick Singer, with Buy Your Own Arena.Singer huddled with fellow new arena opponents outside City Hall on Tuesday afternoon following a 7-2 vote that set a special election on whether to build a new arena. "I just think they need to come back with a better deal, acknowledge that we have other needs in our city, and let’s talk about it," Singer said.Nine hundred million dollars will go toward a new arena, and the Thunder will commit to staying through 2050. The Thunder will chip in $50 million, while the city will pay for most of the cost by extending a one-cent sales tax.With the mayor's signature on Tuesday afternoon, all that remains is a vote of the people to extend that one-cent sales tax for 72 months.| MORE | Mayor David Holt discusses OKC Thunder's contribution to proposed arena"Those of us who follow these votes are very well aware there is always going to be negativity, but the Thunder’s unbelievable impact on Oklahoma City, the way it has changed how we see ourselves, the way the world sees us, is what’s going to be on the ballot," Holt said.The argument from those for the new arena is that building it will prevent the team from leaving, something Singer doubts would actually happen."They get to take their clients there, their families there, I just don’t believe it. I really don’t believe it," Singer said.Holt argued ownership has plenty of ways to leave OKC in a lucrative way."That also completely discounts something that also happens a lot in professional sports, and that’s the sale of a team," Holt said.The vote of the public is set for Tuesday, Dec. 12.Top HeadlinesAuthorities believe suspected Oklahoma State Fair shooter didn't go through metal detectorStrong El Nino Update: Early Winter OutlookOffers pour in to help couple after Airbnb canceled over veteran's service dogSingle dad of 6 receives restored car after biking to work for six monthsPowerball jackpot climbs to est. $835 million after no grand prize winners in Monday night's drawing