Next up, Mormon-heavy Nevada.

(ABC News) — Mitt Romney will win the Florida Republican primary, ABC News projects, based on the exit polls and analysis of the vote in so far.

Newt Gingrich will be second, Rick Santorum third and Ron Paul will place fourth, ABC News projects.

Romney appeared to win most of the state’s southern and central region, while Gingrich’s support was concentrated in the north.

The former Massachusetts governor’s debate performance last week and negative ad campaign against chief rival Gingrich helped him win in the Sunshine State