Original sentence: "Superdelegate" is an informal term for some of the delegates to the Democratic National Convention, the quadrennial convention of the United States Democratic Party.Its purpose was to accord a greater role to active politicians.The Democratic Party has been criticized  for conducting its nominating process in an undemocratic way, because superdelegates are generally chosen without regard to their preferences in the presidential race and are not obligated to support the candidate chosen by the voters.The purpose of the changes was to make the composition of the convention less subject to control by party leaders and more responsive to the votes cast during the campaign for the nomination.There have been repeated calls to eliminate the superdelegates from the nomination process to more accurately reflect the popular vote, including an online petition.They are free to support any candidate for the nomination
Edited sentence: "Superdelegate" is an informal term for unpledged delegates to the Democratic National Convention, the quadrennial convention of the United States Democratic Party.However, superdelegates continue to play an active role in the Democratic Party nomination process and supporters say they are needed to balance the sometimes undue power of large voting blocs led by overzealous party activists vying for one candidate over another.Its purpose was to accord a greater role to active politicians and diminish the influence of rank and file voters.The Democratic Party has been criticized  for conducting its nominating process in a non-democratic fashion since superdelegates are generally chosen without regard to their preferences in the presidential race and are not obligated to support the candidate chosen by the voters.The purpose of the changes was to make the composition of the convention less subject to control by party leaders and activists and more responsive to the campaign for the nomination.They are free to support any candidate for the nomination, especially whomever they think would best be suited to be President of The United States of America