"These abuses have been going on for much too long," said Senator Carl Levin, Democrat of Michigan, who will lead the hearing and is sponsoring legislation that would crack down on offshore accounts.
Leahy is stepping aside to allow Sen. Richard Blumenthal (D-Conn)., an outspoken critic of Boggs, to lead the hearing.
The chief justice, Eusoff Chin, who led the hearing, disagreed.
But Mr. Vacca, who led the hearing where Mr. Daus testified Monday, said the public needed a more thorough accounting of the matter.
"I want to make it very clear, chancellor, that Eddie is gone," the lawyer, Ellen K. Eagen, told Kathleen Grimm, the deputy chancellor who led the hearing.
She led the hearing, which was entitled "Breeding, Drugs, and Breakdowns: The State of Thoroughbred Horseracing and the Welfare of the Thoroughbred Racehorse".
"Hopefully, we'll get you on the job very quickly," Senator Edward M. Kennedy, Democrat of Massachusetts, who led the hearing, told Dr. McClellan.
The episode that appeared to most capture the mood, however, came when Senator Robert Menendez, the New Jersey Democrat who led the hearing, mistakenly referred to Mr. Kerry as "Mr. Secretary".
Shelley Moore Capito, a Republican from West Virginia who led the hearing, raised a series of questions about what went wrong at JPMorgan, while other lawmakers largely steered clear of the topic du jour.
Senator Carl Levin, a Democrat from Michigan who led the hearing as chairman of the Permanent Subcommittee on Investigations, responded testily, calling Switzerland "one of the most vocal supporters of bank secrecy in the world".
State Senator Bill Perkins of Manhattan, who led the hearing, at the Adam Clayton Powell State Office Building in Harlem, asked Mr. Ravitch several times if his commission had considered ways to avoid raising public transit fares.
