Except that is another lie by you.
You are now saying 'if we can just get Joe and Hunter to testify' then MAYBE, depending on the answer we will then have evidence of the crimes. You do not have a SINGLE thing Now that shows any Joe guilt. NOTHING. But as james Comer says, your view is 'we are looking' and 'we hope so'. And you just admitted it.
Let's say that Ms. Fascist 2023's wish comes true and Joe Biden testifies that he did not discuss details of Hunter's business with him. Toxic et al will just claim he's lying. Then they'll have to have ANOTHER impeachment inquiry into perjury charges. This could go on for years!