The U.S. Congress Judiciary Committee is pushing technology companies to provide access to all communications with European Commission officials that relate to the enforcement of EU digital rules, in letters sent Monday.

The letters cite comments from a senior EU official first reported by POLITICO that communications included messages set to auto-delete.

In letters addressed to 10 companies including Alphabet, Meta, Microsoft, TikTok and X, the chairman of the committee, Ohio Republican Jim Jordan, said that the companies are required “to preserve and produce relevant communications, including these auto-deleting messages, with foreign censors” under subpoenas issued in February.