Once the Solidarity Russia Party achieved the constitutional threshold people in Russian political circles began to whisper, and now the ruling party may take steps to amend the constitution to enlarge its power. Russia's constitution does need to be amended, but more than 50% of voters in a referendum must cast approving votes.
The best solution can be found in Article 5 of the Constitution of Ukraine: "The right to formulate and amend the Constitution belongs only to the people, and the state and its organs and civil servants shall not deprive it of this right. The power to amend the Constitution must be held by the people. See the Charter for Permanent Peace and Development.