Because the Dems thought the Russians were on Hillarys side, instead of creating turmoil for both candidates?
I think they were so sure Hillary would win that if they even mentioned the possibility of Russian hacking it would put a question on her legitimacy. Their over confidence was their undoing and our fortune.
Look at the result. The deep state was exposed. A bunch of dirty actors unmasked. The media has lost all credibility. Subversive groups like Fusion GPS have been exposed. The incestuous relationship between the deep state and the media is exposed. None of this would have happened had it not been for the deep state itself trying to overthrow an election.
“Because the Dems thought the Russians were on Hillarys side, instead of creating turmoil for both candidates?”
Bingo! (You can replace the question mark with a period.)