House Democrats huddled privately Friday morning to debate whether to participate or boycott the committee. Nancy Pelosi acknowledged no consensus emerged.
Boycotting would be an unusual, though not unprecedented, move. Experts say not to be surprised if they do boycott. Sources believe that doing so would have little downside and could possibly even give Democrats momentum with their base ahead of the midterm elections.
In 2005, Democrats boycotted a special House committee set up to investigate the response to hurricane Katrina. They worried that the Republican-controlled House would “whitewash” the Bush White House of any responsibility.
http://www.latimes.com/nation/nationnow/la-na-nn-benghazi-committee-20140509-story.html
http://www.usatoday.com/story/news/politics/2014/05/09/benghazi-committee-member-selected/8894245/