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Definition of 'C. Michael Armstrong'
A former CEO and chairman of AT&T from 1997 until he resigned in 2002. He led AT&T to acquire two of the largest cable television companies in 1998 but had to break up the new company in 2001 in the wake of the dot-com bust. Armstrong was also a former Citigroup board member from 1989 to 2010. He was criticized for his role in Citigroup's financial struggles during the 2007 financial crisis.
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Investopedia explains 'C. Michael Armstrong'
Born in Detroit in 1938, Armstrong is also a member of the Council on Foreign Relations. Prior to joining AT&T, he held high-level positions at IBM, where he worked for 31 years, and at Hughes Electronics, where he helped launch DirecTV.
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