Maine voters will decide on November 3 whether to repeal a law, signed by the governor in May, that legalized gay marriage. A Public Policy Polling survey released Tuesday shows that voters are split evenly on the issue: 48 percent of respondents said they'll vote to keep the law ("No On 1"), while another 48 percent said they'll vote to nix it ("Yes On 1").

Maine's gay marriage opponents recruited Frank Schubert, the p.r. strategist behind last year's Proposition 8 advertisements in California, to employ his signature tricks--including telling voters that, if the law remains as it is, gay marriage will be taught to schoolchildren. The law includes no language about altering school curricula, and last week, Maine's attorney general confirmed that her "analysis of the issue reveals no impact" on what students are taught. But Yes On 1 is still pressing the point--and hard. Brian Brown, executive director of the National Organization for Marriage (NOM), which is backing the Yes On 1 campaign, told me there's plenty of evidence that the law will allow gay marriage to infiltrate classrooms. "We don't have to guess or create hypotheticals. We already know," Brown insisted. "Let's not argue about the fact that this is what same-sex marriage proponents want."

Evidence aside, however, there's a nagging question about Yes On 1's chief grievance: What exactly does it mean to "teach gay marriage"?