Özdağ also resigned from the party's executive board in April 2019 but announced that he will continue to be in the party and continue his party-related activities.

Ümit Özdağ served as deputy leader of the Nationalist Movement Party (MHP) from November 2015 to February 2016.

He announced his candidacy for the party leadership for the 8th MHP Ordinary Congress in 2006 but had his membership revoked two days later.

After returning to the party following a successful lawsuit, he again announced his candidacy for the MHP leadership in April 2016 for the 2016 Nationalist Movement Party Extraordinary Congress, which was eventually called off after numerous legal disputes.

He had his party membership revoked by the MHP High Disciplinary Board on 15 November 2016 and currently sits as an İYİ Party Member of Parliament for Istanbul.

Özdağ became one of the founders of İYİ Party (Good Party), which was established on 25 October 2017 by its current leader Meral Akşener.

In April 2019, he resigned from the party's executive board but announced that he will continue to be in the party and continue his party-related activities.

Özdağ was dismissed from the party, however, the Ankara Civil Court of First Instance reversed the decision on January 13.