Earlier quoted context omitted.
Email headers would trivially prove if that was actually an email sent via gmail. The rest of the email account would do a lot to back up the claim it was actually his laptop.
Ok, but I've never seen the media ever publicly discuss document verification in a story. Stories about Trump's tax returns don't include any sort of explanation about verification. They wouldn't even publish the documents in order to keep the source secret. So I don't think its reasonable to assume the lack of easy confirmation means it is necessarily fake.
https://www.washingtonpost.com/health/2020/09/12/trump-contr...