Washington (CNN) -- Republican leaders will propose cutting more spending to balance the amount of additional disaster relief money in a short-term government spending measure defeated earlier by the House, two Republican sources told CNN on Thursday. The additional spending cut, called an offset, would be roughly $100 million from a Department of Energy loan program linked to the solar panel firm Solyndra, which recently collapsed, said the sources -- a GOP aide and a Republican member of Congress -- who spoke on condition of not being identified. The plan, which faces sharp Democratic opposition, could pave the way for a partial government shutdown when the current fiscal year ends on September 30 if it is not resolved.
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NEW: Majority Leader Reid says the GOP-backed bill "will be rejected by the Senate"
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NEW: The Senate is "ready to stay in Washington next week," he adds
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A Democratic aide says Senate Democrats are united against an offset to the bill
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The added offset would cut a federal loan fund linked to a bankrupt solar energy firm
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Democratic
The @placeholder-controlled Senate won't take action until at least Friday, having already adjourned for the day.
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Republican
GOP
The move was intended to persuade the 48 Republicans who voted against the @placeholder measure Wednesday night to change their minds, according to the GOP aide.
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GOP
The move was intended to persuade the 48 Republicans who voted against the GOP measure Wednesday night to change their minds, according to the @placeholder aide.
Congress
Democrats in the House and Senate said Thursday they oppose any offsets to counter the emergency spending for natural disasters, and the Republican strategy sets up a another budget showdown in @placeholder -- this time over the short-term spending measure that would fund the government for the first seven weeks of the new fiscal year, which begins October 1.
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Senate
On Thursday night, senior @placeholder Democratic leadership aide said the party's caucus is united against Republican-tailored versions of the measure.
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The House vote Wednesday was 195 "yea" and 230 "nay," with 48 Republicans joining all but a handful of minority @placeholder in opposing the short-term spending plan.
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GOP
This time, the speaker threatened members with pulling them from committee assignments if they failed to support the continuing resolution on Wednesday, according to a Republican source who attended the @placeholder conference meeting.