[1] Nikolić received the eighty-first position on the Progressive Party's Serbia Is Winning electoral list in the 2016 Serbian parliamentary election and was elected when the list won a majority victory with 131 out of 250 mandates.
[2] In the parliament that followed, she was a member of the environmental protection committee, a deputy member of the spatial planning committee[a] and the European integration committee, and a member of the parliamentary friendship groups with Austria, Azerbaijan, Belarus, Bolivia, China, France, Georgia, Germany, Kazakhstan, Morocco, Russia, Slovenia, Sweden, and Switzerland.
[9] She resigned from the national assembly on 10 June 2024, as she could not hold a dual mandate as a legislator and a member of the executive branch of government in Ub.
[10] Nikolić received the fifth position on the Progressive Party's electoral list for the Ub municipal assembly in the 2020 Serbian local elections and was elected when the list won twenty-six out of thirty mandates.
[16] Ub mayor Darko Glišić resigned on 10 May 2024 after being appointed as a minister in the Serbian government.