NEW YORK ( TheStreet) -- Key members of Newt Gingrich's campaign finance team quit on Tuesday, throwing the former House Speaker's run for the 2012 Republican presidential nomination into further doubt.

R.C. Hammond, a spokesperson for the Georgia politician's campaign, confirmed to the Associated Press that both Jody Thomas, the fundraising director, and Mary Heitman, a consultant, have left.

"Newt 2012 continues its reorganization and alignment as a grassroots driven, substantive, solutions-oriented campaign," Hammond was quoted as saying. Hammond added that the campaign is "as committed as ever."

The news comes with Gingrich's campaign reportedly more than $1 million in debt, and experiencing weak fundraising support.

The departures of the finance team members follow the resignation of many of the campaign's strategic advisers on June 9.

The AP noted Gingrich will have to disclose his campaign finances on July 15.

-- Written by Joe Deaux in New York.

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