That's a fair question. She has no interesting online activity besides that op-ed, so hard to see what else it could be.
https://edition.cnn.com/2025/03/29/us/rumeysa-ozturk-tufts-u...
Alleging that she was part of a larger group that committed crimes... but if that's the case, why didn't they arrest anyone else who was there?
What you can do is take someones VISA on basis of small gathering that you call protest.
I wasn't trying to imply she was merely there, as Rubio is saying they participated. They never said the op-ed was related... so my question is, if the only reasoning is taking part in the protest, then why arrest nobody else who was there?