It's not over yet . WASHINGTON (AP) -- Regulators on Friday shut down banks in California, Maryland and Minnesota, pushing to 84 the number of bank failures this year amid the soured economy and rising loan defaults. The Federal Deposit Insurance Corp. took over the three banks: Affinity Bank, based in Ventura, Calif., with about $1 billion in assets and $922 million in deposits; Baltimore-based Bradford Bank, with $452 million in assets and $383 million in deposits; and Mainstreet Bank, based in Forest Lake, Minn., with assets of $459 million and deposits of $434 million. Pacific Western Bank, based in San Diego, agreed to assume the deposits and assets of Affinity Bank. In addition, the FDIC and Pacific Western agreed to share losses on about $934 million of the failed bank's loans and other assets. Affinity Bank's branches in San Francisco and San Mateo will reopen Saturday as offices of Pacific Western Bank; the remaining branches will reopen Monday, the FDI