The Federal Election Commission chairwoman, Ellen L. Weintraub, on Friday took the dramatic step of using Twitter to release the entire draft of a memo addressing foreign election interference after its disputed publication in the agency’s weekly digest.

Ms. Weintraub, a Democrat appointed by President George W. Bush, said a Republican commission member, Caroline Hunter, had thwarted the release of the memo and the digest, so she self-published the materials in a tweet storm that drew widespread attention to the tensions on the commission.

Ms. Weintraub said on Sunday that the memo, which can also be found on the agency’s website, was drafted by the commission’s staff and was meant to provide guidance on rules about prohibited activities involving foreign nationals in elections.

She said it was unusual for another commissioner to object to publishing it in the digest, a weekly account of fines meted out by the agency for campaign finance law violations and other regulatory matters.