fake and ghey
https://www.reuters.com/article/us-usa-trump-congress-subpoena-explainer/explainer-how-powerful-are-congress-subpoenas-contempt-citations-idUSKCN1S81FP
Congress does not arrest and detain people for ignoring its subpoenas anymore, but it still has significant power to demand witnesses and documents, though it could take time. The contempt citation is a key part of that congressional clout.