 During the Orange Revolution in Ukraine, Chornovil switched from Our Ukraine to the Party of Regions, a party that was antagonistic to Our Ukraine.In December 2004, Taras was the head of the Viktor Yanukovych election committee during the second voting round in the 2004 presidential election.In the 2006 Ukrainian parliamentary election, Chornovil was elected as a deputy to the Ukrainian parliament as a member of the Party of Regions (he was 3th on their party list).