Records show that Hsu helped raise an additional $500,000 from other sources for Clinton and other Democrats.
"Norman Hsu is a longtime and generous supporter of the Democratic Party and its candidates, including Sen. Clinton," Howard Wolfson, a spokesman for the campaign, said Tuesday.
"During Mr. Hsu's many years of active participation in the political process, there has been no question about his integrity or his commitment to playing by the rules, and we have absolutely no reason to call his contributions into question or to return them."
Wolfson did not immediately respond Tuesday night to questions about Hsu's legal problems.
Though he is a fugitive, Hsu has hardly kept a low profile. The website camerarts.com, which sells photographs taken at political events, features shots of Hsu at several fundraisers he hosted at Manhattan's elegant St. Regis hotel -- including a June 2005 luncheon for Rep. Doris Matsui (D-Sacramento).
Hsu lives in New York City. Efforts to contact him were unsuccessful. Barcella said Hsu chose to respond through his lawyer.
Records show that Hsu has emerged as one of the Democrats' most successful "bundlers," rounding up groups of contributors and packaging their checks together before delivering the funds to campaign officials. Individuals can give a total of $4,600 to a single candidate during an election cycle, $2,300 for the primaries and $2,300 for the general election.
One example of the kind of first-time donors Hsu has worked with is the Paw family of Daly City, Calif., which is headed by William Paw, a mail carrier, and his wife, Alice, who is listed as a homemaker.
The Paws -- seven adults, most of whom live together in a small house near San Francisco International Airport -- apparently had never donated to national candidates until 2004. Over a three-year period, they gave $213,000, including $55,000 to Clinton and $14,000 to candidates for state-level offices in New York.
The family includes a son, Winkle Paw, who Barcella said was in business with Hsu. Another son works for a Bay Area school board, while one daughter works for a hospital and another for a computer company.
"They have the financial wherewithal to make their own donations," Barcella said. "It didn't come from Norman."
He said that Hsu had known the Paws for a decade.
"Norman never reimbursed anyone for their contribution," Barcella said. It is a violation of federal law for one person to reimburse donors for campaign contributions.
