LOS ANGELES (AP) — The California Legislature signaled its intent on Thursday to cancel a $400 million loan payment to help finance a longer lifespan for the state’s last nuclear power plant, exposing a rift with Gov. Gavin Newsom who says that the power is critical to safeguarding energy supplies amid a warming climate. The votes in the state Senate and Assembly on funding for the twin-domed Diablo Canyon plant represented an interim step as Newsom and legislative leaders, all Democrats, continue to negotiate a new budget.