[Boogieman]

True, they could do that, but when is the last time Congress has actually done it?

Even if they did arrest someone at the DOJ for contempt, they would still be able to claim executive privilege in a court and challenge the subpoena and arrest. So this power, when it comes to be used against the Executive branch, certainly isn’t guaranteed or even reliable.

[Lurker]

“True, they could do that, but when is the last time Congress has actually done it?”

1935.

“Even if they did arrest someone at the DOJ for contempt, they would still be able to claim executive privilege in a court.”

Only the President can assert executive privilege. Somehow I doubt President Trump would do so.

L