Winner and loser of 2015 in Florida politics
Winner of the year
Marco Rubio. Florida's junior senator still has a long way to go to win the Republican presidential nomination, but a year ago most of the political intelligentsia assumed he would not even run because there was no way he could effectively compete against his old mentor. Just as Rubio ignored the conventional wisdom when he took on Charlie Crist for U.S. Senate in 2010, he did it again in 2015 and now stands among the top contenders, and the one most feared by Democrat Hillary Clinton.
Loser of the year
Jeb Bush. One year ago, our former governor looked like the prohibitive front-runner to win the GOP nomination. His campaign team planned a "shock and awe" campaign to keep rivals at bay by jumping in early and raising so much money and locking up so many endorsements that most potential challengers would just give up. Turned out the shock was that Bush proved to be much less skilled at politics than many of us Floridians remembered. The awe was more, "Awwww, poor little Jeb Bush, being bullied and belittled day after day by Donald Trump."
See here for runners up for winner and loser of the year in Florida politics.