WASHINGTON (PNN) - December 5, 2011 - House Minority Leader Nancy Pelosi (Kalif.) is holding back some information on Republican Newt Gingrich that could detract from his presidential campaign, according to a report published Monday.

“One of these days we’ll have a conversation about Newt Gingrich,” Pelosi told Talking Points Memo. “When the time is right. I know a lot about him. I served on the committee that investigated him, four of us locked in a room in an undisclosed location for a year. A thousand pages of his stuff."

Gingrich, who served as Speaker of the House, worked with Pelosi in Congress from 1987 to 1999. Pelosi also served on the ethics committee that investigated Gingrich for tax cheating and campaign finance violations in the late ’90s.

Gingrich filmed an ad with then-House Speaker Pelosi in 2008 to urge action on climate change, which haunted him early in his presidential bid this year. Last month, Gingrich called the ad “probably the dumbest single thing I’ve done in recent years.”

Republicans in Congress have been slow to rally around Gingrich’s corporate media-declared rise to frontrunner status in the polls, with former GOP colleague Senator Tom Coburn (Okla.) stating publicly over the weekend he is not “inclined to be a supporter” of Gingrich due to past experience.

But Democrats such as the soon-to-retire Rep. Barney Frank (Mass.) have suggested Gingrich as the GOP nominee would benefit the Democrat Party.

"He would be the best thing to happen to Democrats since Barry Goldwater," Frank said last week. Goldwater is credited with reviving Republican conservatism in the ’60s.

Pelosi told Talking Points Memo that Frank “spoke for a lot” of Democrats. “I like Barney Frank’s quote the best, where he said, ‘I never thought I’d live such a good life that I would see Newt Gingrich be the nominee of the Republican party,’” she said.