"Rep. Cannon's intervention into an Internet-contract business dispute on behalf of his brother's client clearly does not reflect creditably on the House," according to the CREW report.

CREW claims that by helping his brother, Chris Cannon "is improving his own financial status as well," because of the debt owed from the 1992 campaign.

Isom said the campaign debt has been there for awhile, and claiming that the congressman is helping his brother in order to get this debt repaid is "stretching it a little."

Isom also cited a 2005 editorial from The Hill, a newspaper that covers Congress, criticizing CREW for not being clear as to who is running the organization and contending that much of the criticism targets Republicans.

In the report released Wednesday, CREW also mentioned Rep. Randy "Duke" Cunningham, R-Calif., who is now serving an eight-year jail term for bribery. Rep. Bob Ney, R-Ohio, who has agreed to plead guilty to federal corruption charges, appeared in last year's report.

The list named Sen. Conrad Burns, R-Mont.; Senate Majority Leader Bill Frist, R-Tenn.; and Sen. Rick Santorum, R-Pa., as the most corrupt in the Senate. The list included 17 House members, including Rep. William Jefferson, D-La., who had $90,000 cash in his freezer when FBI agents searched his home.

"CREW created this exhaustive go-to guide on corruption in Congress to expose and hold accountable those members of Congress who believe they are above the law," Melanie Sloan, executive director of CREW, said Wednesday. "The officials named in this report have chosen to enrich themselves and their families and friends by abusing the power of their office, rather than work for the public good. Their collective corruption affects all Americans."

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Contributing: Bob Bernick Jr.

E-mail: suzanne@desnews.com