ALPINE -- Here in the Republican stronghold of eastern San Diego County, Duncan Hunter the son is attempting to succeed Duncan Hunter the father in the 52nd Congressional District. The elder Hunter is leaving Congress after 14 terms and a failed try this year for the GOP nomination for president. When he first ran for Congress in 1980, he was a 31-year-old combat veteran from Vietnam. His son is a 31-year-old combat veteran from Iraq and Afghanistan. Father and son share the same brand of conservatism: Continue building the border fence; continue fighting in Iraq; cut spending and taxes; oppose...