TY JOUR TI Verification of the constitutionality of electoral legislation in terms of regulating the nomination and registration of candidates for elected office KW electoral process KW candidate KW nomination KW registration KW legal uncertainty KW Constitutional Court JO Vestnik of the St. Petersburg University of the Ministry of Internal Affairs of Russia AU Novopavlovskaya, E.E. PY 2025 IS 2025 PB SAINT-PETERSBURG UNIVERSITY OF THE MINISTRY OF INTERNAL AFFAIRS OF THE RUSSIAN FEDERATION