The difference between the secret document situation of trump and the secret document situation of Biden is like comparing apples and oranges. Actually more like comparing apples and a steaming pile of shit.
As far as the FBI investigating , sure why not. But I will save them some money and trouble
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How did they get there " : in the normal process that secret document are delivered to the offices of the VP
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who brought them there": people authored to transport such documents
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who had access to them" : The VP and those employees of the office with the proper clearance .
As far as we know so far, someone in the office failed to retune them.The discrepancy was discovered by Biden employees
and the transgression was rectified.
They were not just "found" they were found by:
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They were discovered by the president’s personal lawyers, who were packing up the office space he used periodically from mid-2017, after he served as vice-president, until he launched his presidential campaign in 2020."
Classified Documents Found in Old Biden Office: What We Know