Days before the presidential election, Facebook has temporarily paused its algorithmic recommendation of groups dealing with political or social issues. It’s unclear when Facebook enacted this measure, and it was not publicly announced, BuzzFeed News reported on Friday. At a congressional hearing on Wednesday, Facebook CEO Mark Zuckerberg was questioned by Massachusetts Senator Ed Markey about Facebook group recommendations ahead of the election. Zuckerberg told Markey that “we have taken the step of stopping recommendations in groups for all political content or social issue groups as a precaution for this.”