White House national security spokesman John Kirby; Gov. Wes Moore, D-Md.; Sen. Chris Van Hollen, D-Md.; Rep. French Hill, R-Ark.; Rachel Goldberg, whose son Hersh Goldberg-Polin is among those taken hostage by Hamas; Avril Benoit, executive director of Doctors Without Borders; Janti Soeripto, president and CEO of Save the Children.