Is there an article or reliable pundit that is saying Trump would have to sign off? Seems like congressional oversight type of functionality

Big distraction.

To build a good theory it must be based on facts, data, evidence.

In terms of predicting human behavior, the best predictor of future behavior is past behavior.
Humans are creatures of habit and repeat the same patterns over and over.

Trump NEVER admits guilt. He has no history of taking responsibility, doing the right thing,
or quitting against his will.

Trump, his family, his pals are making a huge fortune with Trump in the WH.
Why would Trump voluntarily walk away? His children would prevent it if at all possible.

Trump will never do anything that might land him in prison.
Resigning might lead to that possibility.

Impeachment requires a functioning congress and there is zero data to support this scenario.

Even if he does he still has the courts in his pocket.

The veto fails, as there aren't enough votes to override the veto.

Fox, Rightwing Hate Radio, and Russian influenced social media scream 100% vindication and the lapdog media goes right along with it.

However, a majority if the American public are not that stupid and, along with the coming house of cards stock market collapse, the GOP gets slaughtered in the mid-terms and Trump and his administration are fucked.

...aren't stupid enough to have re-elected him, but he is in the Oval Office nonetheless.