south. newt gingrich is in but romney has already moved ahead to missouri looking to this weekend's caucuses. rick santorum is in louisiana which doesn't vote until a week from saturday. hawaii and american samoa are also holding caucuses today it all adds up to 107 delegates up for grabs in all four contests. we have team fox coverage tonight. james rosen is more on our exit polls, first to campaign carl cammeron. i mexico add lot at stake for former speaker tonight. i remember distinctly his campaign calling these two states must wins. >> and the speaker himself has said that he has to do well in the south in order for his campaign to be considered viable and to restore his momentum and to put some real fundraising capacity back into his campaign. he is just barely in the black. gingrich comes into these alabama and mississippi contests with the polls up until today suggesting virtually a three-way tie. these would be -- these two states for gingrich to prove that he can expand his win, expand his reach across the country, not just in the south