He has led the Democratic Alliance of Croats in Vojvodina (DSHV) since 2015 and has been Serbia's minister of human and minority rights and social dialogue since 2022.

[2] In September 2002, he said that Croat institutions in Vojvodina were operating under "very unfavourable conditions," notwithstanding that relations with the Serbian state had improved significantly since the fall of Slobodan Milošević's government two years later.

[12] Žigmanov frequently criticised the government of Croatia during these years for paying insufficient attention to the concerns of Croats in Serbia.

[13] He welcomed Croatia's accession to the European Union (EU) in 2013, although he criticised the Croatian government's decision not to invite any representatives of Vojvodina's Croat community to the ceremony.

[15] After the ICTY's decision to temporarily release Vojislav Šešelj on health grounds in 2014, Žigmanov said that Croats in Vojvodina had "justified and understandable reasons to be worried" about the Radical Party leader's sudden return to Serbia.

[16] On another occasion, he said that twenty-five Croats had been killed in the Srem and South Bačka Districts during the Yugoslav Wars and that more than thirty thousand people were expelled or forced to leave their homes, although he added that these crimes took place under state auspices and that Šešelj was not exclusively responsible.

[17] In March 2015, the mayor of Subotica banned the promotion of two critical books on the origins of the Bunjevci community at city hall on the grounds that their presentation would be political in nature.

A report in the Croatian media described Žigmanov and Bačić as speculating that Croats in the city could be forced to wear special badges in the future.

[19][20] He criticised the governing Democratic Party (DS) for participating in the council's 2010 elections, which he said were intended to be reserved for Croat institutions and organisations.

[22] This notwithstanding, he joined with the DSHV in welcoming the election of HDZ candidate Kolinda Grabar-Kitarović as president of Croatia in 2015, on the grounds that she had promised to devote more time to the concerns of Vojvodina Croats.

[29] In early 2017, Vesna Prćić, at the time the DSHV's sole delegate in Vojvodina provincial assembly, said that she believed the party should support SNS leader Aleksandar Vučić in the 2017 Serbian presidential election.

Although the DSHV continued to serve in opposition, it congratulated Vučić after his victory in the presidential contest and welcomed Croatian president Grabar-Kitarović's presence at his inauguration as marking a step toward the normalisation of relations between the countries.

[42] The 2016 Serbian election saw the return to parliament of Radical Party leader Vojislav Šešelj after an absence of thirteen years, most of which he had spent in The Hague on trial for war crimes.

Žigmanov hailed the verdict as the first time an international court recognised crimes committed against Croats in Vojvodina during the Yugoslav Wars and added, "we could say that a little justice has been served.

"[44] Following his conviction, Šešelj said that he was "proud" of his actions in 1992 and was "preparing intensively to commit again my war crimes, [starting] with Tomislav Žigmanov and Nenad Čanak."

[48] (Jandroković's trip was cut short after an incident on the assembly grounds in which Šešelj trampled on the Croatian flag and cursed at both Jandranković and Žigmanov.

[50] He welcomed a decision by Serbian police to prevent the Radical Party from holding a rally in Hrtkovci on the anniversary of Šešelj's 1992 speech, though he added, "the reason why this is happening, the downplaying of events from the 1990s in which Croats were the victims [...] hasn't disappeared.

"[51] Šešelj subsequently purchased a house in Hrtkovci, an act that the Serbian media identified as an obvious provocation against the Croat community.

In response to this statement, senior Radical Party official and parliamentarian Vjerica Radeta again insulted Žigmanov, calling him an Ustasha.

[54] UDS's decision to participate in the 2020 election was controversial, as most leading opposition parties chose to boycott the vote on the grounds that it was neither free nor fair.

The Serbian Progressive Party won a majority victory in the 2023 parliamentary election and afterward formed a new coalition government with many of the same partners as in the previous ministry.

[79] In September 2024, Žigmanov said that his ministry had prepared a draft law on the recognition of same-sex relationships in Serbia, which he described as informed by human rights standards.