WASHINGTON — Although the second congressional hearing on a high-profile issue tends to be repetitive and anticlimactic, the Senate Banking Committee's failure to challenge Jamie Dimon last week has given House lawmakers an opportunity to bolster their reputations by sharply confronting the JPMorgan Chase chief executive.

Unlike the Senate session, which lasted only two hours, the House Financial Services Committee hearing scheduled for Tuesday will be a marathon, with 58 members getting the chance to question not just Dimon, but also a separate panel of five top regulators about the bank's recent trading loss.

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