Litigation over legacy residential MBS deals that went sour in the run-up to the financial crisis continued last week, as California Attorney General Kamala Harris sued investment bank Morgan Stanley for alleged misrepresentations about RMBS investments, which she said contributed to huge losses by investors such as the state’s public pension funds. In what is just the second such use of the False Claims Act by a state, Harris’ complaint, filed in San Francisco Superior Court, alleges that Morgan Stanley violated the FCA, as well as California securities law and other state laws, by allegedly hiding or downplaying the risks of complex investments involving large numbers of underlying loans or other assets. Harris used...