Lockhart served as the White House press secretary under President Clinton from 1998 to 2000. He also worked on Sen. John KerryJohn KerryIran’s nuclear deal just the tip of the iceberg for Trump Trump needs to stand firm on immigration, 'religious-test' insticts Budowsky: Ellison, Kerry to DNC? MORE's (D-Mass.) 2004 presidential bid, Clinton's 1996 run and other Democratic campaigns. He co-founded Glover Park Group, a Washington-based communications firm.
Lockhart joined Facebook in July of last year.