A male Democratic operative has been arrested by U.S. Capitol Police for assaulting a female official in President Donald J. Trump’s administration. The arrest took place following a House budget hearing on Thursday.

A Capitol Police officer said they had “arrested an adult male for simple assault against another individual outside room 1324 in the Longworth House Office Building,” according to Politico.

The Daily Caller New Foundation reports additional details: The assault happened after Interior Secretary Ryan Zinke finished testifying on the department’s 2019 budget proposal before the House Committee on Natural Resources. The suspect identified himself as a reporter with American Bridge and pushed a female Interior Department communications official to the floor, chasing after Zinke, The Daily Caller News Foundation learned.

Interior communications director Laura Rigas was “greatly alarmed and extremely irate that a female senior member of my DOI Communications team was physically assaulted today by a Democrat staffer from the PAC American Bridge,” she told Politico.

George Soros donated $2 million to American Bridge in 2016, and Tom Steyer’s NextGen Climate Action donates money to the group regularly, as noted in records kept by the Center for Responsive Politics.

From the DCNF report: American Bridge is a political action committee dedicated to “holding Republicans accountable for their words and actions,” according to their website. American Bridge is known for having operatives follow Republican candidates on the campaign trail.