For the past decade, one entity has become predominant in secretive giving on the left of the political spectrum: Arabella Advisors. It goes by a lot of different names, like the New Venture Fund, the Windward Fund, 1630 Fund. This panoply of organizations represents hundreds of nonprofit entities ranging from full-fledged 501(c)3s and 501(c)4s to astroturf groups that only exist as websites. Billions of dollars have flowed into and out of these Arabella entities, all working to counter free markets and conservative ideas and to advance progressive ideology.