BOSTON (AP) -- Repub lican U.S. Sen. Scott Brown and Democratic rival Eliza beth Warren challenged each other to provide more details about their work histories on Wednesday.
Warren faulted Brown, a lawyer, for failing to release the names of his clients during his years of public service, including the time he served in the U.S. Senate and Massachusetts Legislature.
"As I understand it, he has been in public services now for 25 years and had never released the name of a single client," Warren said during a campaign stop in Boston.
Brown reported earning more than $147,000 from his law firm from 2008 to 2010.
Brown sent out a letter earlier in the morning calling on Warren to provide an accounting of her corporate legal clients during her years as a law professor at Harvard University.
He has criticized Warren for her legal work in the 1990s for LTV Steel as it fought mandated health care payments and her work as a legal consultant for Travelers Insurance in a U.S. Supreme Court case.
"Voters are learning that contrary to your claim to always stand with middle-class workers, you have instead chosen to stand with large corporations and against workers," Brown wrote.
Warren, a consumer advocate, said Wednesday that since she went into public service in 2008, she's made financial disclosures and released her client contacts.
But she has declined to release details about other firms she performed legal work for earlier. Asked Monday on WTKK-FM if she could produce a list of those firms, she said, "I don't have it."
Brown said Harvard Law School requires faculty members to report outside activities each year.
Warren also faulted Brown for refusing to release the names of lobbyists he's met with since winning the 2010 special election to fill the Senate seat left vacant by the death of longtime Democratic Sen. Edward Kennedy.
"I am surprised to hear Senator Brown raise an issue around disclosure when Senator Brown clearly has many things that he has not wanted to disclose on his own," she said.