Jamie Dimon, the influential chief of JPMorgan Chase, watched from New York on Friday while in Washington, D.C., his top lieutenants were questioned by a Senate panel over a multibillion-dollar trading loss, the New York Times DealBook blog reported yesterday. An uncomfortable spotlight has swung back on Dimon all the same, as the hearing and the panel's report detailed his role in the trading blowup, potentially creating fresh challenges for a chief executive long praised for his risk-management prowess. The chairman and chief executive of the nation’s largest bank is unlikely to face a serious threat to his power at a time when he is reporting record profits. Two board members are concerned about the repercussions of Mr. Dimon’s statements on an earnings call last April, when he dismissed news reports about the trades as a "tempest in a teapot."
