New York (CNN) Facebook (FB) said Thursday it will remove some ads run by President Donald Trump's re-election campaign that it says ran afoul of its policies to "prevent confusion around the official US census."

Facebook had come under fire for allowing the Trump campaign to run ads this week on its platform asking people to "respond now" to an "Official Congressional District Census."

"This survey is ESSENTIAL to our team's 2020 campaign strategy. We need Patriotic Americans like YOU to respond to this census, so we can develop a winning strategy for YOUR STATE," some of the ads read.

The questions on the survey include asking users about their views of President Trump as well as their age, name, and contact information. The survey also asked what news outlets they read most, and if they "think Nancy Pelosi and the Radical Left are putting their personal anti-Trump agenda ahead of what's best for the American people."

Facebook has been criticized by Democrats for its policy of not fact-checking ads run by politicians, a policy that Democrats say benefits Trump.

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