The article: https://www.theguardian.com/media/2016/dec/24/julian-assange...
The reason their extreme bias shows: https://theintercept.com/2016/12/29/the-guardians-summary-of...
This is a bit of an exception, because it is quite possibly the worst article I've ever seen them put out. But they definitely have a bias, towards the Clinton/Blair faux-left to the point where they not only dislike the right, but also the people like Sanders/Corbyn.