California Democrat activist Joseph Sanberg, a multimillionaire who fashioned himself an anti-poverty crusader, was arrested Monday on suspicion that he conspired to defraud investors in his “green” finance company, Aspiration. “Joseph Neal Sanberg, 45, of Orange, the co-founder and largest shareholder of the financial and sustainability services company Aspiration Partners, Inc., was arrested today on a federal criminal complaint alleging that he conspired to defraud two investor funds of at least $145 million,” Joseph McNally, Acting U.S. Attorney for the Central District of California, said in a statement. Aspiration Inc. was backed by actors Leonardo DiCaprio and Robert Downey Jr....