President Donald Trump’s commission on election fraud is demanding states turn over sensitive voter data through an insecure email that could be used by hackers for identity theft, Gizmodo reports.

The voter rolls include names, addresses, birthdays, partial Social Security numbers, and in some cases even driver’s license numbers, among other information. But the the email system intended to traffic the information lacks minimal encryption protections, according to the report.

Trump created the commission to investigate charges of alleged voter fraud, though reports of the phenomenon are relatively rare. The commission sent letters to election officials on Wednesday demanding all voter roll data. Several states have already denied the request or access to certain information as illegal, overly intrusive or simply an expensive waste of time.

Mississippi’s Republican Secretary of State Delbert Hosemann said commission members could “go jump in the Gulf of Mexico.”

California’s Democratic Secretary of State Alex Padilla said in a statement that it’s a “waste of taxpayer money” and that he will “not provide sensitive voter information to a commission that has already inaccurately passed judgment that millions of Californians voted illegally.”

California’s “participation would only serve to legitimize the false and already debunked claims of massive voter fraud made by the president, the vice president,” and Kris Kobach, Padilla said.

Kobach, the Kansas secretary of state and vice chair of the Presidential Advisory Commission on Election Integrity, has a history of exaggerating voter fraud and pressing laws that have disenfranchised Kansas voters.