Folks, do not bother to read anything the current U.S. intelligence agencies say on anything, especially the claimed Russian hack. 

In the U.S. there exists a Deep State of immense power, so much power they actually run the country in all matters of war, military, security and economics. All presidents work for the Deep State, not the other way around. Obama certainly did. The Deep State enjoys a trillion dollar budget and controls foreign policy. They love the Cold War and sorry to see it ended. This is why they have been doing everything to restart Cold War, first with Russia then with China. They need war and threats to justify their existence. Peace is dangerous to them. 

A few heads of the Deep State will be replaced by Trump. They are desperate, and is now inventing this fake Russian Hack to lock Trump into an aggressive war-like policy on Russia. As such the Pentagon will continue to enjoy $1 trillion budget, war and aggression everywhere. Deep State war on Trump.