General Discussion
In reply to the discussion: Inside Hillary Clintons Secret Takeover of the DNC (By DONNA BRAZILE November 02, 2017) [View all]Jim Lane
(11,175 posts)Admission to the boys' club is, presumably, by vote of the Membership Committee or the like.
Admission to the Democratic primaries is not by the DNC. It is by the state election authorities in each state. So, yes, someone "approved" or "allowed" Bernie's appearance on the ballot -- just as someone "approved" or "allowed" Hillary's appearance on the ballot.
That "someone" wasn't, AFAIK, the Democratic Party. I think the most common rule is that a would-be candidate must submit a statement of candidacy, a set of petitions with a certain number of signatures meeting certain criteria, and a filing fee. I've seen nothing to suggest that, in any of the state primaries, the rules were different for O'Malley (lifelong Democrat), Clinton (Democrat since teen years), Chafee (switched to Democrat just a few years ago), and Sanders (caucuses with the Democrats but not identified in Senate records as a Democrat).
There are implications for the future. Some people have criticized the purported DNC decision in 2016, because they think that Bernie should not have been allowed to run. Others have criticized the hypothetical DNC decision in 2020 that will bar Bernie, because they see it as evidence of the DNC's antidemocratic tendencies. I think both views are wrong. I think that there was no such DNC decision last cycle and there will be no such DNC decision next cycle.