The battle in the Senate over a proposed consumer financial protection agency is the final show-down between banks and American families, bailout watchdog Elizabeth Warren wrote to supporters Monday night. The outcome "will show whether we are going to let the industry continue to write the rules -- to keep the cops off the beat -- or whether the financial crisis actually changed something." Senate Banking Committee Chairman Christopher Dodd (D-Conn.) is said to be considering dropping the proposed independent agency from the Senate's financial reform bill. But Warren isn't giving up.