As he testifies before nearly half the U.S. Senate, Facebook CEO Mark Zuckerberg has his company’s in-house legal and lobbying teams at his back.

Seated directly behind him today is Facebook Inc.’s vice president of U.S. public policy, Joel Kaplan, who served as President George W. Bush’s deputy chief of staff from 2006 until the end of his administration. Also joining Zuckerberg were Facebook general counsel Colin Stretch; associate general counsel for compliance Pearl Del Rosario; chief privacy officer Erin Egan; and Myriah Jordan, a policy manager on congressional relations who was previously U.S. Sen. Richard Burr’s general counsel. Brian Rice, director of public policy at Facebook, was also seated near Zuckerberg.