"To turn this Congress into the most honest and open Congress in history," she said. "That is my pledge. That is what I intend to do."
But some Democrats and ethics experts say that promise was undercut when Pelosi endorsed John Murtha, a decorated Vietnam veteran with a checkered ethical record, for the No. 2 leadership position in the House.
"Rep. Murtha has basically been on the wrong side of public integrity issues during his career," says Fred Wertheimer, president of watchdog group Democracy 21.
Critics claim Murtha has amassed power in part by handing out taxpayer money to special interests, including to clients of defense lobbyists who give him big campaign contributions.
Then, there is video from an FBI sting in 1980, known as Abscam. Murtha was named as an unindicted co-conspirator in the federal bribery scandal, which led to the conviction of one U.S. senator and six members of Congress.
"I'm not interested," interrupts Murtha.
"At this point," clarifies Murtha.
"You know, we do business for a while, maybe I'll be interested, maybe I won't, you know," says Murtha.
Murtha refuses the cashand talks about his need to be cautious because of his ambitions.
"I expect to be in the (expletive) leadership of the House," he says on the tape. "And you have anything said about you, then you've got a problem."
As his supporters point out, that was 26 years ago.
"Not only is it ancient history, but the fact of the matter is Jack Murtha was never charged with anything," says Rep. Martin Meehan, D-Mass.
The House Ethics Committee also did not take action against Murtha.
Murtha has repeatedly denied wrongdoing and says these charges amount to "Swift boating" — the same kind of unfair charges that helped defeat Democratic presidential candidate John Kerry in 2004. Murtha also now supports ethics reform.