A poll by Quinnipiac University released on Thursday morning shows that U.S. Rep. Connie Mack holds a commanding lead in the Republican primary to challenge U.S. Sen. Bill Nelson and holds a slight edge over that Democrat incumbent in a possible general election match-up.
Mack takes 42 percent in the poll of registered voters with Nelson right behind him at 41 percent. In a Quinnipiac poll taken at the end of March, Nelson led 44 percent while Mack followed with 36 percent.






