No question?  LOL.  

In fact, there is NO EVIDENCE.

What has be ascertained (as published in The Nation mag*) is that the DNC files cannot have been hacked remotely and must have been tranfered by the thief ON SITE.e

* https://www.thenation.com/article/a-new-report-raises-big-questions-about-last-years-dnc-hack/
.