New Jersey lawmakers hope to override Gov. Chris Christie’s (R) veto of a bill about pig cages that opponents say was a move to pander to Iowa, the first state to hold a caucus for the 2016 presidential elections.

Christie vetoed the bill Friday, which would prohibit pregnant pigs from being held in cages called gestation stalls that limit their ability to turn around, lie down, or extend their limbs, and called it “a solution in search of a problem.” According to the Star-Ledger, there are only about 9,000 pigs in New Jersey, and gestation stalls aren’t used in the state.

State Sen. Raymond Lesniak (D), one of the bill’s sponsors, said an override would require three out of nine Republican members of the Senate who initially voted for the bill and six out of seven Republican members of the Assembly.

“It’s certainly our best chance ever of standing up to the governor,” he told The Washington Post in an interview.

The bill has the support of more than 90 percent of New Jersey residents, he said. It passed 32-1 in the Senate and 53-13 in the Assembly.

Iowa Gov. Terry Brandstad (R) called Christie’s veto a “good decision” and said he didn’t believe presidential politics had anything to do with Christie’s motives, according to the Des Moines Register. But Lesniak doesn’t agree.

“There can only be one explanation that makes sense: that the governor cares more about Iowa than New Jersey,” he said. “They have a hook into Gov. Christie, a hook that’s obviously a lot stronger than the will of the people of New Jersey and his Republican colleagues in the legislature.”