The Kremlin says it had zero involvement in the hacking of the Democratic Party's email system while U.S. officials say the hack originated in Russia. We may never know who is right, but one thing is for sure — Russia had motive, capability and form.

Seen through Kremlin eyes, Moscow would only be doing what it feels the United States has been doing to it for years anyway — interfering in a geopolitical rival's domestic politics in an attempt to destabilize and shape events.

President Vladimir Putin said in February he had seen specific intelligence suggesting that Russia's foreign enemies — code for Washington — were preparing to meddle in Russian parliamentary elections later this year.