A political advocacy group funded largely by wealthy Stanford physicist Charles T. Munger Jr. has poured $83,000 this week into an independent push to re-elect Republican Assemblywoman Beth Gaines. Gaines, of Rocklin, is running against attorney and fellow Republican Andy Pugno in the 6th Assembly District, a newly drawn district based in Placer County but extending into Sacramento and El Dorado counties. Democrat Reginald Bronner of Lincoln rounds out the field. A radio advertisement and campaign literature supporting Gaines was funded by Spirit of Democracy, whose coffers consist of $727,000 from Munger and $150,000 from the California Dental Association, records...