Separately on Friday, U.S. Senator Elizabeth Warren, a Democrat on the banking committee, called for hearings into issues raised by secretly taped conversations between Federal Reserve supervisors and Goldman officials.
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Carmen Segarra, a former New York Fed bank examiner who recorded the conversations, brought a wrongful termination lawsuit against her former employer last year, alleging that she was fired due to her refusal to change her findings that Goldman Sachs had no company-wide conflict of interest policy.
A source familiar with the situation said the bank's new rules on Friday were in the works for some time and were unrelated to the Segarra case.
Segarra's suit was dismissed in April for failing to state a claim that merited whistleblower protection, a decision she is appealing.
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According to the complaint, Segarra's review included the roughly $23 billion takeover of pipeline company El Paso Corp by Kinder Morgan Inc. Goldman advised El Paso on the 2012 merger despite holding a big stake in Kinder Morgan.