The threat of Russia meddling in the upcoming U.S. midterm elections is "huge," according to a partner at the law firm Eversheds Sutherland.

In fact, the ongoing investigations into Russia's 2016 meddling are a recognition of that threat, Michael Bahar, a former Democratic staff director for the House Intelligence Committee, told CNBC on Thursday.

Still, Russian President Vladimir Putin will continue to disrupt U.S.democratic institutions through manipulating the flaws in cyberspace, Bahar predicted.

"Look, Putin is the great disruptor. That's the game he is playing, and he's been meeting with quite a lot of success," Bahar said. "And he is going to continue to do that, because it has been effective and he has got many means to do that, one of which, of course, is perpetration of click troll and all that manipulation of social media to really exploit divisions that exist in democracies."

"I think that's the real point of the congressional intelligence investigations, because there's another investigation ongoing — Bob Mueller's investigations — and that's really looking to determine what happened, relative to individuals," Bahar also told CNBC.

Unlike special counsel Robert Mueller's investigations into whether the Donald Trump campaign colluded with Russia, the congressional intelligence investigations serve to prevent foreign meddling from occurring in the future.

"But the congressional intelligence investigations are about education," Bahar explained. "They explain to the American people and to the world, this is what happened, why it happened, how it happened — so that it never happens again."