ARTICLE TEN
Amendments, Bylaws, and Rules
Section 1. This Charter may be amended by a vote of a majority of all of the delegates to the National Convention, provided that no such amendment shall be effective unless and until it is subsequently ratified by a vote of the majority of the entire membership of the Democratic National Committee.
This Charter may also be amended by a vote of two-thirds of the entire membership of the Democratic National Committee.
At least thirty days written notice shall be given of any National Committee meeting at which action will be taken pursuant to this Section, and any proposed amendment
shall be given to all members of the National Committee and shall be released to the national news media.
This Charter may also be amended by a vote of two-thirds of the entire membership of any Democratic Party Conference called under the authority of this Charter for such purpose.
Section 2. Bylaws of the Democratic Party shall be adopted to provide for the governance of the affairs of the Democratic Party in matters not provided for in this Charter.
Bylaws may be adopted or amended by a majority vote of:
(a) the National Convention; or
(b) the Democratic National Committee provided that thirty days written notice of any
proposed Bylaw or amendment has been given to all members of the National Committee.
Unless adopted in the form of an amendment to this Charter or otherwise designated, any resolution adopted by the National Convention relating to the governance of the Party shall be considered a Bylaw.
24 pages:
https://democrats.org/wp-content/uploads/2022/02/DNC-Charter-Bylaws-10.09.2021.pdf
I had the understanding that there are state laws forcing delegates to vote for whom they are pledged.
Also the Conference thing seems dicey Presumably a majority of the DN Committee could appoint a loaded Conference, thereby subverting Section 1 (where ordinarily it would take 2/3 of the DN Committee).