(FOX  NEWS) Republican lawmakers are fighting back against what they call an effort by the Obama administration to silence the political speech of tax-exempt groups, including those originally targeted by the IRS.

A House panel passed a bill Tuesday that would delay regulations by the Treasury Department designed to limit the political activities of so-called social welfare groups.

Treasury officials claim the regulations would help clarify vague rules about which groups qualify for tax-exempt status, but congressional Republicans believe the regulations are an attempt to legalize the targeting of conservative groups.

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