during the mayoralty of Marion Barry, was criticized for mismanagement and waste. Barry defeated incumbent mayor Walter Washington in the 1978 Democratic Party primary. Barry was then elected mayor, serving three successive four-year terms. During his administration in 1989, The Washington Monthly magazine claimed that the District had "the worst city government in America". After being imprisoned for six months on misdemeanor drug charges in 1990, Barry did not run for reelection. In 1991, Sharon Pratt Kelly became the first black woman to lead a major U.S. city. Barry was elected again in 1994 and by the next year the city had become nearly insolvent. In 1995, Congress created the District of Columbia Financial Control Board to oversee all municipal spending and rehabilitate the city government. Mayor Anthony Williams won election in 1998. His administration oversaw a period of greater prosperity, urban renewal, and budget surpluses. The District regained control over its finances in 2001 and the oversight board's operations were suspended in September of that year. Williams did not seek reelection in 2006. Councilmember Adrian Fenty defeated Council Chairwoman Linda Cropp in that year's Democratic primary race to succeed Williams as mayor and started his term in 2007. Shortly upon taking office, Fenty won approval from the city council to directly manage and overhaul the city's under-performing public school system. However, Fenty lost a Democratic Party primary to former Council Chair Vincent Gray in August 2010. Mayor Gray won the general election and assumed office in January 2011 with a pledge to bring economic opportunities to more of the city's residents and under-served areas. 21st century Terrorism and security The Washington area was a main target of the September 11, 2001 attacks. American Airlines Flight 77 was hijacked by five Islamist terrorists and flew into the Pentagon in Arlington County, just across the Potomac River from Washington, killing 125 people inside the building, as well as 64 onboard the airliner, including the five terrorists. United Airlines Flight 93, which was also hijacked and which went down in an open field near Shanksville, Pennsylvania, supposedly intended to target either the White House or the United States Capitol Building. Since September 11, 2001, several high-profile incidents and security scares have occurred in Washington. In October 2001, anthrax attacks, involving anthrax-contaminated mail sent to numerous members of Congress, infected 31 staff members and killed two U.S. Postal Service employees who handled the