The Democratic National Committee is looking to avoid a repeat of 2016's controversial nomination process with a new set of reforms.
The DNC voted on Saturday to implement the changes, which include limiting the power of so-called superdelegates — delegates who can vote for a different candidate than their state primaries selected.
The new rules mean superdelegates won't get to vote in the first round of the nomination process and will only vote if a second round is required.
In 2016, superdelegates overwhelmingly supported former Secretary of State Hillary Clinton, drawing criticism from supporters of her opponent, Sen. Bernie Sanders.