May 17, 2012 12:00 AM

JPMorgan Chase CEO Dimon summoned before Senate committee

The Senate Banking Committee on Thursday summoned JPMorgan Chase CEO Jamie Dimon to testify under oath about the huge losses his company suffered on an investment strategy that sank JPMorgan’s share price, heightened concerns about the efficacy of new regulations and tarnished the reputation of the nation’s star banker.

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