Facebook is investigating News for Democracy, an organization backed by liberal megadonor Reid Hoffman, over misleading news pages the group operated prior to the 2018 midterm elections, the social network said Monday. News for Democracy created several active Facebook pages that may have broken the social network’s advertising policies and rules against misleading users during the race, The Washington Post reported. **SNIP** Mr. Hoffman, a LinkedIn co-founder and Microsoft board member, did not return requests for comment, The Post reported. Dmitri Mehlhorn, his top political adviser and a News for Democracy, declined to comment, the report said.