Lets clarify some things.
1. A hack on the RNC was attempted and failed. Any SYSAD can look at logs and see that events occurred. I see intrusion attempts on my home networks daily. You would be surprised what people living in their moms basement do all day. If you've never looked at your routers logs, I highly recommend it. If you do not know how to properly secure you home network, there plenty of tutorials on the web that will show how.
2. The RNC was hacked for certain but not like you think. It was "hacked" by the easiest and most preventable forms of hacking - a SpearPhishing email. John Podesta received a spoofed email stating that it was from Google with an email indicating someone "had his password". His chief of staff even sent this email to the RNC IT department asking if it was legitimate and the morons told her it was legitimate and he need to change it immediately. He clicks the link which directs him to a webserver somewhere on the intardwebs that most any of us can set up with a YouTube lesson, enters old password and his new desired password. The actor then has his old password and desired new password and hooks ole Podesta (who thinks he is on google changing his password) up by changing it for him. Podesta even gets the email from Google stating his password was changed and to "click here if you did not change your password". He of course now has to change his "new" password on all devices so this seems legit to Mr. ClueMinus.
3. His inbox/outbox and folder hierarchy were ex-filtrated and given to Wiki-leaks - by someone.
4. Russia has some very sophisticated hackers and tool sets that run more than a simple Spearphishing campaign. What happened to Podesta was a pre-school hacking level attack. If the RNC fell for this craptastic trick and Russia had actually applied its hacking arsenal to the DNC, imagine what Wiki-leaks would really have to release, given they even got the data from Russia in the first place.
5. With the right toolkits and skill sets, it isn't hard to leave fingerprints trailing back to whomever you please. Think about that.
6. When the Intel community says "High Confidence" it means they are making an educated guess based on past history and what they think they see, that is not evidentiary proof. I have high confidence they do not know yet, but the media narrative sure is making that easy for them to say. I doubt us citizens will every hear the entire story but I can tell you we are only getting a part of it.
SpearPhishing https://archives.fbi.gov/archives/news/stories/2009/april/spearphishing_040109
http://www.thesmokinggun.com/documents/crime/how-john-podesta-got-hacked-839125
I'm sure it was a typo, but in #2, that should read DNC, not RNC.
According to wikileaks, the intel it gained came from a DNC leaker. When Julius Assange was asked if it came from Russia, he said no. It came from a DNC leaker. Statements from wikileaks have been proven to be 100% correct for how many years now?
The Russians did hack the DNC using the phishing scheme. As has been said in a post past, the Russians and wikileaks did what an honest MSM should have done but covered up because they wanted their girl in office.