It's interesting that it may have been avoidable if he'd accepted rendition to Sweden to stand trial for the sexual assault accusation, given that the previous administration was apparently uninterested in extraditing him for this charge.
He likely made the situation worse by hiding out in the embassy---he became a symbol of something untouchable by American power, and this administration cares more about that sort of perception than the previous one.
Deport to Sweden then deport to the USA was the scheme Assange was afraid of IIRC. Something about Sweden having a stronger deportation treaty than the UK...
As evidenced by the "Cablegate" leak, it's more the fact that when the US government tells the Swedish government to jump, the latter asks "how high?" like a trained fucking poodle.
Link the leak? In this case, extraditing to Sweden on a wholly unrelated charge than to extradite to the US seems like a thing Sweden would not want because it would have hurt their credibility in future extraditions. All speculative now, ofc.
He likely made the situation worse by hiding out in the embassy---he became a symbol of something untouchable by American power, and this administration cares more about that sort of perception than the previous one.