(FREE BEACON) -- The left-wing group leading a campaign to have Senate Democrats eliminate the filibuster is housed at one of the left's most powerful dark money networks, business records show.
Fix Our Senate is steering a coalition of 60 progressive groups to pressure moderate Democrats to eliminate the filibuster, which requires a 60-vote supermajority to advance legislation. The group is a project of the Sixteen Thirty Fund, a nonprofit incubator managed by the D.C.-based consulting firm Arabella Advisors. Arabella's network of funds is used by the nation's wealthiest liberal donors to secretly bankroll a host of progressive initiatives.
The coalition has added dozens of groups in recent days as Democrats increase their calls to eliminate the filibuster.