A Tucson school district employee is under house arrest after FBI agents say he threatened his U.S. congresswoman. 

A criminal complaint filed in U.S. District Court on Monday shows Steve Martan left profanity laced messages on U.S. Rep. Martha McSally’s voicemail.

Martain told FBI investigators he was frustrated over her support for President Donald Trump.

The complaint shows Martan left messages for McSally to “be careful” and that her days “were numbered,” and that he specifically threatened to shoot her in another message.

McSally represents the same district where former U.S. Rep. Gabrielle Giffords was wounded and six other people were killed during an assassination attempt in January 2011.

Martan, a campus monitor at Miles Exploratory Learning Center in the Tucson Unified School District, was remanded to his home, with an electronic monitoring device.

A judge also ordered that he stay away from McSally and enroll in a state mental-health program, and he is not allowed to possess any weapon, including a firearm.