By ROB CHRISTENSEN AND JOHN WAGNER, Staff Writers Jim Snyder, the Lexington lawyer who lost the GOP primary to Elizabeth Dole, is beginning to set his sights on Democratic Sen. John Edwards. Snyder plans to send an e-mail letter to 40,000 Republicans next week, testing the waters for a Senate bid in 2004. "I believe John Edwards can be defeated," Snyder said. Snyder said he has also received encouragement to run against Democratic Gov. Mike Easley in 2002, but he said his strongest interest is in the Senate. Snyder said he hopes to decide by April on whether he...