The Big Three used the power they derive from investing other people’s money to force compliance with a radical political goal. A recent House Judiciary Committee report details how America’s largest financial institutions, colluding with climate activists, imposed radical environmental policies on the American economy, subverting both our self-government and free markets. It focuses on the successful effort to insert climate activist directors on the board of energy giant ExxonMobil. According to the report, there is “substantial evidence of a ‘climate cartel’ of financial institutions” including the “Big Three” asset managers (BlackRock, State Street, and Vanguard), several massive state pension...