Former California Gov. Jerry Brown, newly returned from a mission to flood-ravaged Bangladesh, continued to leave the door open for a return to politics during an appearance Tuesday on ABC's "Good Morning America." "There's obviously something I know about the process and I'd like to be a part of it," said Brown, who served eight years as governor of California but lost a bid for a U.S. Senate seat to Republican Pete Wilson in 1982. Brown declined to disclose any specific plans but said another run for the Senate "is possible."