A Chicago man on Monday was arrested and charged with making threatening phone calls to Illinois State Rep. Jeanne Ives, an opponent of gay marriage.

On Friday, Ives, a freshman Republican, said that a man “called her office multiple times and made negative personal comments and threatening remarks.”

Stephen S. Bona, 49, was charged with disorderly conduct. The charges were upgraded on Monday following a second threatening phone call to Ives' office. Bona now faces a charge of threatening a public official, a Class 3 felony in Illinois.

Bona was taken into custody on Monday by Wheaton police, a Chicago suburb located in Ives' district. He later posted bond and was released, according to MyFoxChicago.com.

Last month, Ives faced criticism when she described gay relationships as “completely disordered.”

“What they're trying to do is not just redefine marriage; they're trying to redefine society,” Ives said during a radio interview with the Catholic Conference of Illinois. “They're trying to weasel their way into acceptability so that they can then start to push their agenda down into the schools, because this gives them some sort of legitimacy. And we can't allow that to happen. … It's the natural right of the child to be with both parents, either in an adoptive nature or in a biological nature. To not have a mother and a father is really a disordered state for a child to grow up in and it really makes that child an object of desire rather than the result of a matrimony.”