WASHINGTON -- Casino owner Sheldon Adelson is expected to send another $10 million donation within days to the outside group that's provided life support to Newt Gingrich's beleaguered presidential campaign, say fundraisers with ties to the multibillionaire.
The infusion would bring total donations from Adelson and his family to the pro-Gingrich super political action committee Winning Our Future to $21 million -- far more than any other super PAC donor has given to date.
It would also be among the largest publicly reported donations to a single entity in federal campaign history.
The funds are expected to help fuel a multimillion-dollar television advertising blast before the Super Tuesday presidential sweepstakes March 6, when 10 states conduct GOP primaries.
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One fundraiser who has spoken with Adelson in the last week said the wealthy supporter of Jewish and pro-Israel causes remains committed to keeping Gingrich in the race.
It's unclear whether the pro-Gingrich group's ads will attack the front-runners in the race for the Republican presidential nomination -- former Massachusetts Gov. Mitt Romney and former Pennsylvania Sen. Rick Santorum -- burnish Gingrich's conservative image or both.
Odds are that the contribution won't win the nomination for Gingrich, the former speaker of the House of Representatives who now trails in the polls. But if the super PAC's new spending erodes conservative support from Santorum, that would be fine with Adelson, fundraisers say.
The billionaire has told fundraisers that he likes Romney and deems him his second choice.
Rick Tyler, a senior adviser to the super PAC, declined to comment about whether any further donations are coming from Adelson.