Facebook did not immediately reply when asked on Sunday for a response to the lawmakers' comments. However, in a new statement Sunday, the company said it was conducting a "comprehensive internal and external review" to determine if the user data in question still existed.

This is Essential Politics, our daily look at California political and government news. Rosey Grier, a legendary Los Angeles Rams player, says he's thinking about running for governor of California . Uber's effort to use self-driving cars on San Francisco streets without a permit inspires one legislator to take action . A former Los Angeles planning commissioner becomes the twelfth person to enter the race to replace Rep. Xavier Becerra. Rosey Grier, a legendary Los Angeles Rams player, says he's thinking about running for governor of California .