|Operation Fast and Furious|
The Democrats who have taken that stance so far are all conservative-leaning lawmakers facing perilous political circumstances in their home districts. Republican Rep. Darrell Issa, who is leading the charge on contempt, predicted to Fox News that up to 31 Democrats could be considering voting against Holder -- in reference to a letter signed by 31 Democrats last year expressing concern about Fast and Furious.
Sources told Fox News that about 20 Democrats are likely to vote with Republicans on Thursday.
The latest Democrats to announce an anti-Holder stance are Reps. Nick Rahall, D-W.Va., and John Barrow, D-Ga.
"While Republicans and Democrats argue over the scope of the people's right to know what happened, the Attorney General has decided to withhold relevant documents," Barrow said in a statement. "The only way to get to the bottom of what happened is for the Department of Justice to turn over the remaining documents, so that we can work together to ensure this tragedy never happens again."