Competing radio ads spotlight wealthy Stanford physicist Charles T. Munger Jr.'s deep-pockets support for incumbent Assemblywoman Beth Gaines against challenger Andy Pugno in a Placer County-based Assembly district. Spirit of Democracy, an advocacy group funded largely by Munger, has poured more than $175,000 into a radio and mail promotional campaign for Gaines this month. Pugno is attempting to create a backlash by painting the GOP activist as a liberal. Munger is a major GOP donor and was a key financial backer of redistricting reform. He has pushed to moderate the Republican Party by downplaying divisive issues such as abortion, gun...