Dem Megadonors, Officials Financially Tied to Electric Bus Company Boosted by Biden Dem-linked investment firms pumped millions into Proterra before White House spotlighted green company Nicholas and Susan Pritzker in 2013 / Getty Images Collin Anderson and Matthew Foldi • May 5, 2021 5:00 am Energy secretary Jennifer Granholm is not the only prominent Democrat with financial ties to an electric bus company repeatedly boosted by the Biden administration, documents reviewed by the Washington Free Beacon show. Nicholas and Joby Pritzker—members of Illinois Democratic governor J.B. Pritzker's megadonor family—own nearly 12 million shares of ArcLight through their venture capital fund, Tao Capital. ArcLight in January announced a $1.6 billion merger with Proterra, which will see the electric vehicle manufacturer go public in 2021. Granholm served on Proterra's board for nearly four years and still holds up to $5 million in company stock.