Some of those ads targeted specific demographic groups in the two states, according to sources who spoke to CNN. Both played a big role in President Donald Trump cinching the Electoral College vote, despite losing the popular vote by 3 million. Rival Hillary Clinton made no campaign appearances in Wisconsin, and decided against a last-minute stop in MI before Election Day.
Accused of having to react first, Facebook is now multiplying communications on this subject.
On the product side, the social network will now let users see a list of all the ads that a Facebook Page is running on the site, even if those ads aren't targeting you.
Facebook handed over to Congress roughly 3,000 ads with links to Russian Federation on Monday. Russian Federation denies meddling in the election.
44% of total ad impressions (number of times ads were displayed) were before the United States election on November 8, 2016; 56% were after the election.
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Waters, who has described Islam as "evil", caused chaos by standing, with senior party figures threatening to leave if she won. BBC political correspondent Ben Wright said Mr Bolton would be seen as the continuity candidate.
Russian operatives used a Facebook tool to identify people who might be susceptible to propaganda adverts - then bombarded them with ads such as an image of Hillary Clinton behind bars.
Schrage said that the total reach of dubious Russian ads was 10-million people, but only 44% of ad impressions (the number of times ads were displayed) were before the election.
Last week, Twitter shut down 201 accounts it said were tied to the same Russian operatives that bought the Facebook ads, and the Post reports that Google is also conducting an investigation into possible Russian meddling on its platform.
Last month, responding to the invitations from US lawmakers, Mark Zuckerberg, Facebook's Chief Executive pledged to deliver the ads to investigators from the Congress looking into suspected Russian activities in the USA election but wasn't clear on the purposed time of delivery.
50 percent of them got $3, 99 percent got $1,000 in ad spend. The company said it sold $100,000 worth of ads to these sources. The Campaign Legal Center is a nonprofit of Washington that supports for additional elections transparency, this week sent a letter to Mark Zuckerberg, the Chief Executive of Facebook, requesting that the firm publicly rolls out the content of the supposed Russia-connected political ads. While we may not always agree with the positions of those who would speak on issues here, we believe in their right to do so - just as we believe in the right of Americans to express opinions on issues in other countries.