June 28--  A rapidly growing number of Democrats are lining up to hold Attorney General Eric Holder in contempt of Congress on Thursday for withholding documents in the investigation into Operation Fast and Furious, a botched sting operation that let guns slip into the hands of drug cartels.

At least five Democrats so far have said they plan to vote to hold Holder in contempt, according to Fox News, and as many as 11 appear ready to break ranks. They include Rep. John Barrow, D-Ga, Reps. Nick Rahall, D-W.Va.; Collin Peterson, D-Minn.; Jim Matheson, D-Utah; and Mike McIntyre, D-N.C.

"The only way to get to the bottom of what happened is for the Department of Justice to turn over the remaining documents," said Barrow. "We can work together to ensure this tragedy never happens again."

Federal agents allowed 2,500 firearms to be illegally purchased on the Southwest border. Two of the guns were recovered when U.S. Border Patrol Agent Brian Terry was killed in December 2010.

Read more on Newsmax.com: Democrats to Defect, Vote for Holder Contempt