From 1990-1994, Taras was a deputy of the Lviv Oblast Rada. From 1995 he was the main editor of the "Chas" newspaper. In 2000 and 2002, Chornovil was elected as a deputy to the Lviv City Council. From May 2002, Chornovil was a member of the Our Ukraine fraction of the Verkhovna Rada (Ukraine's parliament). 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). On 28 November 2006, he was one of the only two Party of Regions MPs who voted in favour of the law recognizing Holodomor as genocide.