following the election of the new president of the commission, president-elect called upon member states to propose candidates for european commissioners. the president-elect, in agreement with the european council, assigned to each proposed candidate a portfolio, and the council sent the list of candidates to the european parliament. candidates were then questioned about their knowledge of the assigned portfolio and confirmed by european parliament committees. when all of the candidates were confirmed by the respective committee, european parliament took a vote of confirmation of the new european commission in the plenary session. european commission was then officially appointed by the european council using qualified majority. commissioners took the oath of office before the court of justice of the eu before officially taking office.