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"If I had written Cash for Clunkers I might have written it a little stronger," she said. "Because right now, you get rid of a car, it's only, you have to buy a new car that does four miles per gallon better. I think we could have done a little bit better."
Other senators, including Dianne Feinstein, also want the program to focus more on reduced emissions and increased fuel efficiency. They are threatening to vote against $2 billion dollars in additional funding for the program.
The Senate is expected to vote next week. House lawmakers approved the additional cash on Friday.
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