In December 1998, Jovanoviċ was one of nineteen Serbian politicians denied entry to European Union (EU) countries for what was described as her role in bringing about a restrictive new law on public information.
In April 2001, Jovanović refused to leave the floor after exceeding her allotted time to speak, leading to the assembly being adjourned.
[17] She took part in a rally outside the legislature in October 2003, saying that the Radical Party would seek to bring down the "criminal" DOS government as soon as possible.
[19][20] Although the Radicals were the largest party in the assembly after the election, they fell short of a majority and ultimately remained in opposition.
[21] Jovanović led the Radical Party's electoral list for Kragujevac in the 2004 Serbian local elections and was elected when the list won thirteen out of eighty-seven seats, placing third against Veroljub Stevanović's multi-party alliance led by the Serbian Renewal Movement (SPO).
The DS, the Democratic Party of Serbia (DSS) and G17 Plus instead formed a coalition government, and the Radicals remained in opposition.
Jovanović was given the twelfth position on the Radical Party's list and was chosen afterward for a fourth assembly term.
[33] The talks were unsuccessful; the Socialists instead joined a coalition government with the DS-led For a European Serbia (ZES) alliance, and the Radicals once again remained in opposition.
[36][37][38][39] After the 2008 parliamentary election, the Tadić government arrested former Bosnian Serb leader Radovan Karadžić and extradited him to the International Criminal Tribunal for the former Yugoslavia (ICTY) on war crimes charges.
He is the biggest traitor.”[40] On another occasion, she defended Radical Party leader Vojislav Šešelj's suggestion that the person convicted of killing former Serbian prime minister Zoran Đinđić could be recognized as a Serb hero on par with Gavrilo Princip.
He actually said, “I believe that Zvezdan Jovanović was falsely sentenced but if it wasn’t the case he would enjoy the glory of one Gavrilo Princip in Serbian history.
[43] Serbia's electoral system was reformed again in 2011, such that all parliamentary mandates were awarded to candidates on successful lists in numerical order.
In June 2006, Jovanović was appointed as a substitute member of Serbia's delegation to the Parliamentary Assembly of the Council of Europe (PACE).
[50] The Radicals won twenty-two seats in the 2016 parliamentary election, returning to the national assembly after a four-year absence.
As in 2007, Jovanović represented the SRS in pro forma discussions for a new government, joining her party colleague Nemanja Šarović for a consultation session with president Tomislav Nikolić.
[52] Jovanović and Šarović used their time to demand that Nikolić resign, and the meeting was reported to have ended after thirty seconds.
[54] In 2018, she caused a minor furore at a meeting of the NATO assembly in Poland by delivering a speech strongly supporting Vladimir Putin and his policies.
Dragan Šormaz, the leader of Serbia's delegation, criticized her speech as "unstatesmanlike" and as having caused astonishment among those present.