Update: Politico's Cristiano Lima reports that Facebook will restore the ads "in the interest of allowing robust debate."

UPDATE: Facebook says its restoring the ads. “We removed the ads because they violated our policies against use of our corporate logo. In the interest of allowing robust debate, we are restoring the ads.” - FB spox — Cristiano Lima (@viaCristiano) March 11, 2019

Curious why I think FB has too much power? Let's start with their ability to shut down a debate over whether FB has too much power. Thanks for restoring my posts. But I want a social media marketplace that isn't dominated by a single censor. #BreakUpBigTech https://t.co/UPS6dozOxn — Elizabeth Warren (@ewarren) March 11, 2019

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Facebook has banned several ads placed by Sen. Elizabeth Warren's 2020 presidential campaign, days after the Massachusetts Democrat announced a plan to break up "anti-competitive" tech mergers - pointing to Facebook's acquisition of WhatsApp and Instagram as examples of big tech limiting competition.

"Three companies have vast power over our economy and our democracy. Facebook, Amazon, and Google," read the ads which began to run on Friday, According to Politico. "We all use them. But in their rise to power, they’ve bulldozed competition, used our private information for profit, and tilted the playing field in their favor."

As these companies have grown larger and more powerful, they have used their resources and control over the way we use the Internet to squash small businesses and innovation, and substitute their own financial interests for the broader interests of the American people. To restore the balance of power in our democracy, to promote competition, and to ensure that the next generation of technology innovation is as vibrant as the last, it’s time to break up our biggest tech companies. -Elizabeth Warren

Facebook confirmed with Politico that the ads had been taken down and said said the company is reviewing the matter. "The person said, according to an initial review, that the removal could be linked to the company's policies about using Facebook's brand in posts."