Cap Corzine's campaign cash? By Fred Snowflack, Daily Record When people talk about U.S. Sen. Jon Corzine's campaign for governor next year, the conversation starts with money. Corzine, who became a millionaire many times over during a career on Wall Street, spent about $70 million to win his Senate seat in 2000. So, how much will he spend next year? No more than $6.4 million if Morris County freeholder and gubernatorial candidate John Murphy has his way. Murphy sent a letter to Corzine this week suggesting that the senator accept his proposal to limit campaign expenditures to $6.4 million. "I...