"The combined expertise of all of that [intelligence] community, probed and re-probed and re-probed-probed, has come to a common assessment that the government of Russia engaged in a concerted effort to influence and interfere with the integrity of our electoral process. Now, that's the conclusion," Kerry said.
He agreed with Senator McCain's sharp rhetoric against Russia's hostile actions.
"It obviously is a very serious event," the secretary of state noted, expressing belief President Obama "has responded to it accordingly."
Kerry also said that both the president and he personally raised this issue with the Russians last summer.
"We engaged, very personally and privately, with the Russians. And I'm not going to say more about it, except to say that a lot of judgment and consideration went into how that would be handled at that moment," he explained.