UPDATE: Gingrich speaks to supporters at UW-Oshkosh - WAOW - Newsline 9, Wausau News, Weather, Sports

UPDATE: Gingrich speaks to supporters at UW-Oshkosh

OSHKOSH, Wis. (AP) -- Republican presidential hopeful Newt Gingrich's campaign may be struggling, but he isn't backing down.

His wife Callista introduced him to about 200 people in a University of Wisconsin-Oshkosh gym Friday as the next president of the U.S.

Gingrich spoke for 20 minutes saying the federal government must employ more innovative technology and boost domestic oil production. He made no mention of GOP rivals Mitt Romney, Rick Santorum or Ron Paul.

Wisconsin's presidential primary is set for Tuesday. Gingrich was scheduled to make two more appearances in Green Bay later Friday afternoon, but his campaign is flagging.

He has won just two primaries and has laid off a third of his campaign staff.

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