Gov. Arnold Schwarzenegger's supporters on Sunday beat back an attempt at the state Republican Party convention to torpedo the governor's policy agenda. Delegates in San Jose rejected a move to put California Republicans on record as being against Schwarzenegger's plans to increase the minimum wage, manage the state budget and sell $68 billion in bonds to upgrade the state's roads, reservoirs, levees and schools. The complaints make for bad government and even worse politics, the governor's backers warned. "If we're divided, the opposition wins,'' said Michael McSweeney, a delegate from San Diego, who opposed the anti-Schwarzenegger effort. "This isn't about...