For over a decade Bill Frist has steadfastly rejected all suggestions that his ownership of up to $25 million worth of stock in HCA -- the nation's largest for-profit hospital chain, founded by his father -- created a conflict of interest for a Senator deeply involved in shaping health care policy.
Then, this past June, Frist suddenly changed course and, in what he claims was an effort to avoid any conflict of interest, decided to sell off the stock....
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