 On 17 May, the Constitutional Court Chairman Ivan Dombrovskyy resigned and Valeriy Pshenychnyy was appointed chairman in replacement.On 23 May, The Constitutional Court of Ukraine acted to prevent the president's undue influence on the court system.The court's ruling was made after Viktor Yushchenko unduly sought to influence the court by illegally dismissing two Constitutional Court judges Valeriy Pshenychnyy and Syuzanna Stanik for allegations of "oath treason."