Do I think Biden was making all the decisions on those pardons? I highly doubt it. But the way the power is allocated, there is no requirement for written approval. If Biden says he approved them verbally, and that's what he maintains, then there's nothing else to be done here. So it's a scandal worth exposing, but don't get your hopes up that anything is going to be found null and void. That's not going to happen. //

The pardons were sketchy, but they are not null and void, and they won't be found null and void. Unfortunately, as long as Biden himself denies he was duped, there is no mechanism by which to overturn the pardons. That power is given directly to the executive in the U.S. Constitution, and the legislative and judicial branches have no ability to challenge pardons or even change how the process works in the future.