In the 1990s, the United States Senate investigated AARP's non-profit status, with Republican Senator Alan K. Simpson, then chairman of the United States Senate Finance Subcommittee on Social Security, Pensions, and Family Policy, questioning the organization's tax-exempt status in congressional hearings. According to Charles Blahous, the investigations did not reveal sufficient evidence to change the organization's status, though in an interview years later by "The Des Moines Register", Senator Simpson remained "troubled by AARP's practices", calling AARP "the biggest marketing operation in America and money-maker" and an organization whose practices are "the greatest abuse of American generosity I witnessed in my time in the U.S. Senate".