Democratic lawmakers are calling on Facebook, Twitter and other social media to alter the powerful algorithms that fuel their site, saying that they led to the attack on the Capitol and intensify fringe political beliefs.

"The algorithms Facebook uses to maximize user engagement on its platform undermine our shared sense of objective reality, intensify fringe political beliefs, facilitate connections between extremist users, and, tragically, lead some of them to commit real-world physical violence, such as what we experienced firsthand on January 6th," wrote Silicon Valley Congresswoman Anna Eshoo and New Jersey Congressman Tom Malinowski in a letter to Facebook CEO Mark Zuckerberg.

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Calls are mounting among lawmakers to ramp up regulation of social media following the violent takeover of the U.S. Capitol last week.

Facebook, Amazon and a slew of other tech companies have locked President Trump's account and given the boot to right-wing site Parler.

But Bay Area Congresswoman Anna Eshoo, a Democrat on the Energy and Commerce committee, calls the move by tech giants too little, too late and says "Congress and the administration must take swift and bold action."

"These companies have demonstrated they will not do the right thing on their own," she said.

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