New surveys show the Republican presidential field locked in a tight contest for two pivotal Southern primaries, one day before voters hit the polls.

A Public Policy Polling survey for Alabama shows Romney with support from 31 percent of likely GOP voters, edging former House Speaker Newt Gingrich at 30 percent. Former Sen. Rick Santorum is at 29 percent, followed by Rep. Ron Paul (Texas) at 8 percent. The gap between the three leaders of the pack falls within the poll’s 4 point margin of error.

In Mississippi, PPP shows Gingrich with 33 percent support to Romney’s 31 percent, and trailed by Santorum with 27 percent and Ron Paul with 8 percent.

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