{"id":401103817,"url":"https://lda.senate.gov/api/v1/registrants/401103817/?format=json","house_registrant_id":null,"name":"WILLIAMSON LAW + POLICY PLLC","description":"law firm","address_1":"1001 Connecticut Ave NW, Suite 612","address_2":null,"address_3":null,"address_4":null,"city":"Washington","state":"DC","state_display":"District of Columbia","zip":"20036","country":"US","country_display":"United States of America","ppb_country":"US","ppb_country_display":"United States of America","contact_name":"DAVID M WILLIAMSON","contact_telephone":"+1 202-256-6155","dt_updated":"2026-01-20T12:40:39.591782-05:00"}