President Donald Trump is being sued by a government watchdog group after he deleted tweets issued in support of Luther Strange, who on Tuesday lost a tight runoff for Alabama’s Senatorial seat.

On Monday and Tuesday, Trump issued three tweets supporting Strange over Roy Moore for the seat vacated by Jeff Sessions, writing, “Luther Strange has been shooting up in the Alabama polls since my endorsement.”

“Finish the job – vote today for ‘Big Luther,'” Trump also wrote, adding another tweet later that claimed Strange was “tough on crime & border – will never let you down.”

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All three tweets were deleted after Strange lost the tight runoff, though a few tweets in support of Strange are still up on the president’s Twitter. Shortly after deleting the tweets, Trump called Moore to congratulate him on his win.

However, the Citizens for Responsibility and Ethics, a watchdog organization, is now calling Trump out for deleting the tweets, claiming that he is in violation of the Presidential Records Act.

“Trump can try to erase his support of Strange, but under the Presidential Records Act, all his tweets must be archived (we’re suing over it),” the nonprofit wrote on Tuesday.