SACRAMENTO, Calif. -- Perhaps one of the most dangerous sentences in the English language is: "It can't get any worse." Anyone who doesn't know that should not be trusted with sharp objects or political power. And yet there are California Republican Party convention-goers who made that claim in a city where everyone else asks what's wrong with the Republicans. On the one hand, hard-liners want to punish any GOP lawmaker who cuts a deal to put Gov. Jerry Brown's five-year car-fee, income and sales tax extension on the ballot. On the other hand, few Republican lawmakers voted for spending cuts...