As far as I know, the emails have not been disputed. They aren't doctored and are what actually was sent. This is factual information that does make the DNC look bad, because frankly, it was really bad.

"Dismiss evidence that makes Trump look bad out of hand"

What evidence? This is what I'm talking about. There are claims that it's the Russian government with no actual facts besides a trail that ends at a sordid VPN service.

There are plenty of other things that Trump says to make him look bad, I don't need even more evidence based on hearsay and opinion.

If we let things like this go on, a Sanders candidate will never have a future. If someone is bad, let the facts speak for themselves.