Despite a series of political scandals that marred the California state Senate this year, Gov. Jerry Brown said Tuesday he had vetoed key ethics bills seeking to place new restrictions on gift giving and campaign spending. The Democratic governor said politicians should be subject to campaign finance rules, but the general activities addressed in the bills already are subject to regulation and disclosure. The political ethics bills originated in the state Senate, where lawmakers have been under a cloud after federal agents arrested two Democrats in unrelated corruption cases. Agents say supporters lavished gifts and dinners on Sens. Leland Yee...