SAN FRANCISCO (AP) — California, once an afterthought in the battle for control of Congress, has become a top target for deep-pocketed political action committees and other groups in an all-out effort to win districts stretching from the farming towns of the Central Valley to the beach communities of San Diego. Since an independent panel recast California's political boundaries two years ago, the state's newly drawn congressional districts now comprise the most competitive House landscape in the nation and are attracting money at an unprecedented clip — more than $45 million so far. With less than a week until Election Day, that spending is surging as more than 80 outside groups and independent super PACs seek to sway the makeup of the nation's largest congressional delegation, which has 34 Democrats and 19 Republicans.