Sen. Tommy Tuberville (R-AL) has threatened to sue a publication after it revealed details of his tax returns, which he had sent to them by mistake.

According to Lagniappe Daily, which broke the original story, “In a cease-and-desist letter emailed Saturday afternoon, the former Auburn coach’s attorneys demanded the article be removed, accused Lagniappe of ‘unlawfully accessing’ the information.” The letter further “claimed it was illegally published without Tuberville’s consent, and … it was not protected speech under the First Amendment.”