On Monday night, WUSA9 brought you the stories of moms whose teenage girls were sex trafficked on a site called Backpage.

On Tuesday, the House passed a bill that would make it a lot easier for those families to sue the site.

Backpage makes millions off ads to sell children for sex. And the biggest fighter of child sex trafficking, the National Center for Missing and Exploited Children, says 70 percent of the teens they see were sold on that site.

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Right now, Backpage and other websites are not liable for third party content on their sites, because of the Communications Decency Act. If the bill continues it's journey, that could change.

The bill will next hit the Senate, and then the president's desk.

The President's daughter, Ivanka Trump, tweeted her support for the bill earlier on Tuesday.

Not everyone is a fan of this bill. Some internet companies are concerned the bill will open up risk for unforeseen liability for startups that host third-party content.