Cruz rejected both claims. He noted that Iran bans citizens for accessing Twitter, and that both Khamenei and Zarif posted “disinformation and conspiracy theories” in early April. The senator likewise said that the licensing Twitter refers to “expressly” doesn’t allow services to people under sanctions.

This is part of an ongoing issue and doesn’t appear intentionally timed, but it couldn’t come at a worse moment. President Trump is already attacking Twitter for applying a fact check notice on one of his tweets, not to mention hiding a post for “glorification of violence.” There’s a lot of government scrutiny of its practices, and it’s not guaranteed to emerge unscathed.