Former House Speaker and runner-up in the Florida primary Newt Gingrich is challenging the distribution of delegates in the Florida primary. 

The Florida Republican Party opted to change the dates of their primary against the wishes of the Republican National Committee and were penalized half of their original delegate count of 99.  As per the rules of the party,  any primary that is held prior to April 1 has to be awarded on a proportional basis.  According to Fox News: 

"The Newt Gingrich campaign is gearing up to challenge the results of the Florida Republican presidential primary based on the Republican National Committee’s own rules which state that no contest can be winner-take-all prior to April 1, 2012…

Fox News has learned exclusively that on Thursday, a Florida Gingrich campaign official will begin the process of trying to have the RNC rules enforced so that the Sunshine State delegates are distributed based on the percentage of the vote each candidate got.

RNC Chairman Reince Priebus warned Florida Republican Party Chairman Lenny Curry of the violation in a December letter quoting the rule, “…’winner-take-all’ states cannot hold a primary or caucus before April 1, 2012.”