Florida just doesn't work that way.  It's a pretty evenly divided state and pretty stable.  It changes a great deal over the cycles, but the changes tend to offset, demographically -- e.g., growing Hispanic/Latino and African American/Afro-Caribbean populations but also growing number of rural whites from the South/Midwest, etc.

It just doesn't lend itself to big margins.  I don't think anybody's won it statewide by double digits (sans a big third-party candidate) since...Jeb in 2002, at the height of his brother's popularity post-9/11.

Be nice to America. Or we'll bring democracy to your country.