Should this guy be put on trial
and on what charge?
The charges are stated in the post you responded to: "Mr. Assange is wanted in the US over the publication of thousands of classified documents in 2010 and 2011." Have you not read or heard anything about the taking, storing and misusing classified documents? If so, did you think Trump was the only culprit? On 23 May 2019, Assange was indicted on 17 new charges relating to
the Espionage Act of 1917 in the United States District Court for the Eastern District of Virginia.
Serious time: The Espionage Act charges the defendant faces carry a maximum prison sentence of ten years. The Tampering (and related Conspiracy) and Concealment charges each carry a maximum prison sentence of twenty years.
Maybe Julian and Donald can share a cell in a Federal prison.