Google CEO Sundar Pichai revealed that the “full extent” of so-called Russian meddling activity that took place on the platform during all of 2016 was $4,700 spent on some digital advertisements.

"Does Google now know the full extent to which its online platforms were exploited by Russian actors in the election two years ago?" Rep. Jerry Nadler, a Democrat from New York and ranking member of the House Judiciary Committee, asked the search engine's chief executive during Tuesday's hearing.

​"We have - we undertook a very thorough investigation, and, in 2016, we now know that there were two main ad accounts linked to Russia which advertised on Google for about $4,700 in advertising," Pichai responded.

"A total of $4,700?" Nadler asked to confirm.

"That's right," the Google executive replied.