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ATLANTA -- Republican presidential candidate Newt Gingrich is banking on a big win in Georgia Tuesday to keep his fading hopes of winning the nomination alive.



The former House speaker is hoping momentum from an expected win in the state he represented in Congress for 20 years would propel his campaign, which has struggled since his lone victory in the Jan. 21 South Carolina primary.



Gingrich leads by wide margins in Georgia polls. He trails Rick Santorum and Mitt Romney in Tennessee, although the race there is tight and Gingrich was closing the gap in some surveys.



He told 200 supporters near Knoxville on Monday that he has "the chance to win a stunning victory" in Tennessee.

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