"The Democrat's latest campaign report, filed early Friday with the Federal Election Commission, showed he brought in almost $8.5 million from October 1 to 17, padding a tally that was already the most of for any Senate candidate anywhere, ever", adds the author.
Also among the top spenders is the oil company Exxon Mobil, which has spent nearly $2 million on ads on Facebook since May.
Facebook releases routine reports exposing people behind United States political ads on its platform, the company revealed one of its promise on Tuesday.
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While the sums involved may seem large Facebook's ad revenue as a whole stands at $50bn a year, dwarfing the political contributions.
Ben & Jerry's, a part of Unilever, has spent more than $401 000 since May on various ads, including one supporting a Florida ballot measure that would let felons vote.
"We've long stood up for our company values and used our tools as a business - including monetary expenditure and our social media presence - to support driving the change we hope to see in the world", Tandan said in an email. Some Democratic strategists, Duffy writes, have conceded that the going has become tougher following Brett Kavanaugh's confirmation to the Supreme Court. This second edition makes it easier to see who is spending most lavishly on the platform, see who was spending the most money on Facebook and even inspect individual ads.
Smaller firms are aiming to capitalise on the election too. "And tens of millions of dollars are flooding into Texas from liberals across the country". It's also facing stepped-up scrutiny from lawmakers who accuse the Menlo Park, California-based company of political bias and mishandling user information.