Definition: In this task, you will be presented with a passage and have to answer a question based on your understanding of the events inferred from the passage. Try to find the best answer that is most likely to fill in "_". Note that the URLs in the text have been replaced with [Link].
Input: Moscow (CNN) Russian officials barred activist Alexey Navalny from entering the country's presidential race a day after he held nomination gatherings to kick off his run, according to state-run media outlet RIA-Novosti. Russia's Central Election Commission (CEC) rejected Navalny's registration the day after he submitted it, citing a previous embezzlement conviction, RIA-Novosti reported. "Firstly, a citizen who has been sentenced to imprisonment for committing a grave or especially grave crime and who has an outstanding conviction for the said crime, has no right to be elected president of the Russian federation," said CEC member Boris Ebzeev. The decision was not a surprise. Navalny's candidacy was unlikely because Russian law prevents convicted criminals from running for public office, though Navalny and his supporters have said his conviction was politically motivated to block his presidential bid.Navalny will appeal the decision to bar him from the presidential raceNavalny has called for a boycott of the March 2018 election 
 Question:At the time, he said his aim was for _ to have a "competitive" and "balanced" political system, but it wasn't his responsibility to create political opponents.

Russian