Using the statewide precinct shapefile I built, I decided to look at a comparison of Obama and Nelson's performances by precinct.
All 6000+ precincts of Florida showing where Democratic Senator Bill Nelson over-performed President Obama in the 2012 Elections. While Obama got 50% of the vote, Nelson scored a 55% win. Nelson’s strongest gains over the President came from the Panhandle of Florida, a region growing more hostile for Democrats and an area that gave Obama very low percents of the vote. Nelson had much stronger appeal with rural voters than the President, winning several rural counties. In addition, Nelson won many suburban areas that did not vote for the President either. However, Nelson’s rural vote percentages were much lower than his 2000 run, where he won a close race against Bill McBride.
You can see a higher resolution image on my website