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Meanwhile, Republicans spent much of the week playing up their caucuses’ decision to temporarily agree not to request earmarks, a decision that impacts less than one half of 1 percent of the $3.5 trillion national budget. The move received support from at least two Democrats, including Sen. Claire McCaskill of Missouri, who announced plans to attach an amendment to food safety legislation before the Senate that enacts a stricter earmark moratorium than what Republicans adopted and last through the fiscal year 2013.