PHOENIX — Saying he’s acting illegally, Attorney General Kris Mayes is threatening to sue U.S. House Speaker Mike Johnson if he doesn’t say by the end of the day Thursday exactly when and where Adelita Grijalva will be sworn into office.

The letter to Johnson on Tuesday comes weeks after voters chose the Tucson Democrat in a special election to fill the seat vacated by the death of her father, Raul.

Mayes said the election results — she defeated Republican Daniel Butierez with close to 70% of the more than 102,000 votes cast — were never in doubt. And she reminded Johnson he has sworn in others, albeit all Republicans, right after their special elections.

Congressional District 7 stretches from Tucson to Yuma and includes portions of the southwest Valley.

But Mayes got a legal boost to

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