AG Barr, or Attorney General William Barr, served as the 77th Attorney General of the United States from February 2019 to December 2020. He was appointed by President Donald Trump and previously held the same position from 1991 to 1993 under President George H.W. Bush. Barr is known for his work on various legal issues, including matters related to federal law enforcement and national security. During his tenure, Barr faced scrutiny for his handling of the Mueller Report, which investigated Russian interference in the 2016 election. His decisions and public statements often sparked debate and controversy, reflecting the polarized political climate in the U.S. at the time.