A band of D.C. activists angered by an Arizona congressman’s effort to restrict abortions in the District protested at his office near Phoenix on Thursday.

A proposal from Rep. Trent Franks, a Republican, would ban most abortions in D.C. after a woman reached the 20^th week of her pregnancy. Franks and his congressional cosponsors claim the legislation would prevent an unborn child from feeling the physical pain of an abortion procedure.