Washington (CNN) - The ethical complaints against Rep. Charlie Rangel have caused enough anxiety among House Democrats that ten caucus members have called for his resignation.
Although those ten members come from red states, blue states and swing states, the similarities among them are striking. While Rangel is popular on Capitol Hill, his history with these representatives is short - all rode into Congress on the 2006 and 2008 Democratic tidal waves. Six were elected in 2006, in the wake of Abramoff, DeLay and Foley Republican scandals with the Democratic House leader, future Speaker Nancy Pelosi, promising to "drain the swamp" of corruption.
The four members of the 2008 class came to Congress on the coattails of President Obama, who bragged repeatedly during the campaign about his work to pass "the toughest ethics reform legislation since Watergate" with promises of "transparency and accountability."
But beyond those campaign promises, or perhaps because of those promises, the looming Rangel trial in the fall weighs heavily on their electoral fortunes. According to the CNN 100 list of embattled House seats, eight of the ten members are in electoral trouble. Five were ranked as "Most Vulnerable." Those incumbents include: Rep. Mike Arcuri (New York), Rep. Mary Jo Kilroy (Ohio), Rep. Ann Kirkpatrick (Arizona), Rep. Walt Minnick (ID) and Rep. Zack Space (Ohio). Two others, Reps. Debbie Halvorson (Illinois) and Patrick Murphy (Pennsylvania), are on the less perilous "Races to Watch" bottom half of the list.
Additionally, Rep. Paul Hodes (New Hampshire) is in a tight race to fill retiring Republican Senator Judd Gregg's seat.
Only two of the Democratic representatives calling for Rangel's head won re-election in 2008 with large margins and do not appear on CNN's list. They are Reps. Betty Sutton (Ohio) and John Yarmuth (Kentucky).