"The notion that social media is somehow censoring conservative folks is ridiculous," Rep. Ted Lieu (D-California) said this morning.

"When asked to choose between the U.S. government taking action to restrict false news online in ways that could also limit Americans' information freedoms, or protecting those freedoms even if it means false information might be published, Americans fall firmly on the side of protecting freedom," the Pew Research Center writes in a study released Thursday.

"There are a great many Americans who I think are deeply concerned that Facebook and other tech companies are engaged in a pervasive pattern of bias and political censorship," Sen. Ted Cruz told Mark Zuckerberg this week.

"We didn't focus enough on preventing abuse and thinking through how people could use these tools to do harm," Facebook CEO Mark Zuckerberg said.