Mayor Adrian Fenty and supporters of D.C. voting rights on Tuesday unfurled a banner outside city hall urging District residents to march on the U.S. Capitol next week in support of enfranchisement in the House of Representatives.

The sign, which urges participation in Monday’s march and rally, hangs over the Pennsylvania Avenue entrance to the John A. Wilson Building. Another banner hung outside One Judiciary Square, the District government’s largest office building.