A suspect has been arrested after South Carolina Rep. Nancy Mace claimed she was attacked.

“I was physically attacked on Capitol grounds this evening because of my fight to protect women,” she wrote on X on Tuesday night. “Capitol police arrested him. All the violence and threats continue to prove our point. Women deserve security. Your threats will not stop my fight for women!”

U.S. Capitol Police said they arrested a person accused of attacking a lawmaker. Police did not mention the Republican lawmaker in their statement, but said a congressman’s office reported an incident at the Rayburn House office building just before 6 p.m.

“House Division officers and agents from the Threat Assessment Section tracked down the suspect,” police said.

The suspect is James McIntyre, a 33-year-old from Illinois who is facing charges of assault on a government official.

Police said the Rayburn Building was open to the public at the time of the incident and that McIntyre went through a security check before entering the building.

Mace has been embroiled in controversy since she introduced a bill that would ban transgender women from using women’s restrooms on Capitol Hill. She faced criticism from LGBT+ advocates over the legislation, but argued that she introduced it to ensure the safety of women.

Sarah McBride of Delaware, a Democrat and the first transgender person elected to Congress, has become a target of Republicans like Mace, who argue that her use of Capitol restrooms amounted to assault.

According to the Pew Research Center, Republicans are targeting a group of people that makes up just 1.6 percent of U.S. adults.

The center found in 2022 that 64 percent of Americans support policies that protect transgender people from discrimination when it comes to jobs, housing, and in public spaces such as stores and restaurants.