Original sentence: Clashes between the governing Coalition of National Unity and the opposition supported by President Viktor Yushchenko resulted in the opposition frequently boycotting the parliament's plenary sessions.If more members of the opposition defected  the governing coaliton could have secured a constitutional majority' that could override The President's right of veto.On April 2, 2007, Vickor Yushchenko decreed the dissolution of the Verkhovna Rada.Several members of the Opposition parties supported the ruling coalition.The Constitutional Court, following the illegal intervention by the president in May 2007, has not ruled on the constitutionality and authority of the president's actions.The authority and legality of the president to dismiss Ukraine's previous parliament has been challenged in Ukraine's Constitutional Court..
Edited sentence: If more defected, the opposition might have built a two-thirds majority, constitutionally empowered to override presidential veto.It was opposed by the Orange parties: Yuliya Tymoshennko Electoral Bloc and Our Ukraine, and by President Viktor Yushchenko.On April 2, 2007, Yushchenko decreed the dissolution of the Verkhovna Rada.Several members of the Orange parties defected to the ruling coalition.The constitutionality of the decree was never ruled on.The governing coalition, the Coalition of National Unity (Party of Regions, Communist Party of Ukraine, and Socialist Party of Ukraine) held the majority, but not a supermajority, in the Verkhovna Rada (the Ukrainian Parliament