After a summer that saw him outspent by millions, Rep. Kendrick Meek (D-Fla.) leads self-funder Jeff Greene (D) by double digits in two new polls ahead of Tuesday's Democratic Senate primary.  

Still, the final numbers out ahead of Election Day underscore the volatility that has characterized the state's Democratic Primary. 

According to new numbers from Public Policy, Meek holds a commanding 24-point lead. The congressman leads Greene 51 percent to 27 percent, with 13 percent undecided. 

But the final Quinnipiac poll gives Meek just a 10-point edge. In that poll he leads Greene 39 percent to 29 percent, with 28 percent unsure. 

In the Public Policy poll, African-American voters make up 25 percent of the sample, helping Meek to a more solid lead. He earns 70 percent support among African-Americans, but also leads by 10 points with white voters: 47-37.

Still, pollster Tom Jensen warns that should Meek defeat Greene on Tuesday, his real problem with Democrats is just beginning. More Democratic voters have a favorable opinion of Gov. Charlie Crist (I), who is waging an independent Senate bid, than Meek. 

Crist's approval among Democrats in the state is at 57 percent, while Meek's stands at 50 percent.