Former President Barack Obama is urging voters to support Gov. Gavin Newsom’s redistricting campaign in California, warning that next month’s special election could determine the fate of the country. “California, the whole nation is counting on you. Democracy is on the ballot Nov. 4,” Obama said in the 30-second ad that began airing Tuesday. “ Republicans want to steal enough seats in Congress to rig the next election and wield unchecked power for two more years. With Prop 50, you can stop