Members of Congress are making their voices heard on two issues that affect D.C.—a school voucher program and needle-exchange programs.

Sen. John Ensign (R-Nev.) may be a reliable Republican, but he’s never made much noise when it comes to the District. That changed last week when he successfully added an amendment to legislation granting the District a voting seat in the House that would effectively gut the city’s gun laws. While many a Republican before him have done the same — Sen. Kay Bailey Hutchison (R-Tex.) first among them — it is his move…