(CNN)-- The $43,000 purchase of a soundproof booth for Environmental Protection Agency Administrator Scott Pruitt's office violated federal law, the Government Accountability Office concluded Monday.

The watchdog for the Environmental Protection Agency late last week acceded to House Democrats’ demands that his office investigate the widely reported installation of a customized $25,000 soundproof ...

WASHINGTON - Before Environmental Protection Agency Administrator Scott Pruitt could install a secure, soundproof phone booth in his office last fall, officials had to create space for the addition in ...

A government watchdog will examine whether the head of the EPA misused taxpayer money by purchasing a soundproof booth for making private phone calls from his office. In this June 2, 2017 file photo, ...

House Democrats are asking for a federal investigation into Environmental Protection Agency (EPA) Administrator Scott Pruitt’s $25,000 soundproof booth. The Thursday request from Rep. Frank Pallone Jr ...

A soundproof phone booth built for Environmental Protection Agency (EPA) chief Scott Pruitt cost more than $43,000 and circumvented federal rules for office renovations, according to the Government ...

The EPA chief’s much mocked $43,000 “cone of silence” — a soundproof phone booth he ordered installed in his office — violated federal law governing how taxpayers’ money could be spent, a new report ...

The $43,000 purchase of a soundproof booth for Environmental Protection Agency Administrator Scott Pruitt's office violated federal law, the Government Accountability Office concluded Monday. The GAO, ...

Washington (CNN) – Environmental Protection Agency Administrator Scott Pruitt is known for mandating note-free meetings, he’s the only administrator to have requested his 24/7 own security detail and ...