Some of the Facebook ads that were affiliated with a Russian "troll farm" were specifically targeting Michigan and Wisconsin, two states that were paramount to President Trump's 2016 election victory, according to a report Tuesday.

Some of the ads were very particular in how the targeted key demographic groups among certain areas on the states that were critical, sources told CNN, while a large number of ads also appeared in areas where there was no close contest.

Michigan and Wisconsin were some of the most critical battleground states – Trump won the two by 1 percent or less – that helped give Trump the Electoral College edge over Hillary Clinton.

Facebook announced last month $100,000 was purchased for ads from June 2015 to May 2017 by a Russian group called the Internet Research Agency, which has promoted pro-Russia propaganda. The money was affiliated with approximately 3,000 ads and 470 "inauthentic accounts and pages."

Facebook, which suspended all 470 accounts connected to the ads because they did not adhere to authenticity requirements, unveiled Monday it would implement additional steps designed to improve transparency of advertisements.

The Senate Intelligence Committee has requested representatives from Facebook, Twitter, and Alphabet, Google's parent company, to testify at a public hearing on Nov. 1. The three companies have not disclosed if they will participate in the hearing.

Along with a handful of congressional inquiries, special counsel Robert Muller is leading the federal investigation into Russian meddling in the 2016 election and whether the Trump campaign colluded with the Kremlin.