The Left is heading into dangerous legal waters. In recent months, leftist attorneys general from blue states like New York and Massachusetts have been trying to build a case against Exxon Mobile Corp. Massachusetts AG Maura Healey demanded Exxon hand over 40 years of documents related to the company’s climate change research in an effort to build a case that the company committed fraud because it’s a “climate change denier.” Exxon, of course, is fighting the subpoena, saying handing over mountains of banker boxes infringes on its First Amendment rights.

In effect, the leftist AGs are pushing for the criminalization of dissent. But that cuts both ways. Climate change may or may not be occurring, and the cause — whether it’s human industry or the climate’s natural cycle — is up for debate. Responding to the prosecution of Exxon, 13 AGs from red states penned a letter that pointed out if the Left wants to prosecute anyone who doesn’t believe socialism is the response to warmer weather, global warming activists could be prosecuted for overstating the threat.

“We all understand the need for a healthy environment, but we represent a wide range of viewpoints regarding the extent to which man contributes to climate change and the costs and benefits of any proposed fix,” read the letter headed by Alabama AG Luther Strange and Texas AG Ken Paxton. “Nevertheless, we agree on at least one thing — this is not a question for the courts. Using law enforcement authority to resolve a public policy debate undermines the trust invested in our offices and threatens free speech.”

While the conservative AGs said in the letter they would not mount such a prosecution, the same legal logic could lead to the prosecution of climate change activists who advocate for the redistribution of taxpayer money to green energy companies — like failed solar energy company Solyndra. For example, Al Gore made statements that were demonstrably false in “An Inconvenient Truth” and he’s continued to double-down on the Chicken Little rhetoric. Is it just a coincidence that he’s a senior partner in a venture-capital firm that invests in clean energy technology?