In her youth, Kos was a record-holding Yugoslav and Slovenian swimming champion. She studied journalism and joined the sports division of
RTV, and later moved to Germany where she worked for
Deutsche Welle and as
Bonn correspondent for RTV starting in 1993. In 2000, she was appointed vice president of the
Chamber of Commerce and Industry. In 2017, she was appointed Ambassador to Bern, Switzerland. In 2020, she resigned as ambassador due to disagreement with the government's foreign policy, as well as accusations of mobbing and consequential internal control over the work of the embassy. In 2022, she announced her candidacy for President of the Republic. In unexplained circumstances, she resigned from her candidacy and resigned as vice-president of the Freedom Movement. After the resignation of
Tatjana Bobnar as Minister of the Interior, due to a conflict with Prime Minister
Robert Golob, she also resigned from the Freedom Movement party in 2023, explaining that it was no longer her party, thus supporting Tatjana Bobnar. On 17 September 2024,
Ursula von der Leyen announced Kos would be in charge of the
European enlargement, pending approval of the
European Parliament, thus assessing
membership applications of Ukraine and
Moldova and other countries to join the European Union. In September 2024, Kos was accused then by the right-wing
Slovenian Democratic Party over her alleged involvement with the former
Yugoslav Communist secret service,
UDBA. In March 2026 Kos faced renewed allegations of having collaborated with the UDBA. == Personal life ==