I don't think anybody, even Trump, suggested Obama took the documents illegally. All that was said is he took 30 million pages of documents to Chicago. There was NO REASON for the National Archives to truck them there, if they in fact did that, other than via his orders.
As for the handling of them, NARA, a government bureaucracy suggesting essentially all employees who donate have and do donate mostly to Democrats and the leftwing media spin on this, it just doesn't ring true on the face of it.
If you can use People Magazine as your 'credible authority' on this, I think Gateway Pundit should also be considered:
The establishment media is now insisting that Barack Hussein Obama did not keep classified documents and take them with him after he left the White House. The Gateway Pundit can now confirm that this is a blatant lie. There were documents Obama had in his possession when he left the White...
www.thegatewaypundit.com