He appeared in the thirteenth position on the SDA's electoral list for the Novi Pazar municipal assembly in the 2004 Serbian local elections.
[6][7] (In the 2004 local elections, one-third of assembly mandates were awarded to candidates on successful lists in numerical order, while the remaining two-thirds were assigned at the discretion of the sponsoring parties or coalitions.
[10][11] In November 2018, he took part in a BNV delegation that met with Bakir Izetbegović, chairman of the presidency of Bosnia and Herzegovina, in Sarajevo.
[14] The SDA formed a coalition administration with the Sandžak Democratic Party (SDP) after the election, and Hajdinović was chosen for a new term as the BNV's secretary.
[22] Technically, Hajdinović accepted Kučević's vacated mandate and became a member of assembly on 24 September 2024, but he resigned on the same day, and Kalender was named afterward as his replacement.
[23][24][25] He was appointed to a new term as BNV secretary on 23 September 2024, replacing Jusović, amid a turnover in the leadership of that body.