Washington (CNN) - Former CIA Director John Brennan told House Russia investigators Tuesday that Russia "brazenly interfered" in US elections, including actively contacting members of the President Donald Trump's campaign -- but he stopped shy of dubbing it "collusion."

"I saw interaction that in my mind raised questions of whether it was collusion,"
Seeing these types of contacts during the same period of time raised my concern," Brennan said.

Brennan cautioned lawmakers that although he could not definitively say if those contacts amounted to "collusion," he knew that Russians were actively cultivating US contacts and, very likely, did not present themselves as Russian spies.

"Frequently, people who go along a treasonous path do not know they are on a treasonous path until it is too late," Brennan

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"The truth is incontrovertible.
malice may attack it,
ignorance may deride it,
but in the end,
there it is." -Sir Winston Churchill