The Hawaii Caucus is taking place on Tuesday in addition to the primary contests in Alabama and Mississippi.
In the Aloha State, 17 delegates are at stake.
The AP reports:
Although none of the candidates have made a campaign stop in the islands, Ronnie Paul, Elizabeth Santorum and Matt Romney crossed the Pacific to rally support for their fathers heading into Tuesday night's GOP caucus.
Newt Gingrich, who spoke to the Maui Tea Party in September, kept his attention fixed on Alabama and Mississippi primaries that could make or break his bid for the nomination.
From delegates to endorsements, click here for a rundown on who's ahead in the race for the Republican presidential nomination.
Below, a live blog of the latest developments to unfold in Hawaii, Alabama and Mississippi.