Aaron David Miller

Senior Fellow, Carnegie Endowment for International Peace

Achenyo Idachaba

Head of MitiMeth, A Nigeria-Based Environmentally Aware Production Company

Adam Ostrow

Chief Digital Officer, TEGNA

Adam Posen

President of the Peterson Institute for International Economics

Adewale Troutman, MD, MPH, MA, CPH

President, American Public Health Association (APHA); Director, Public Health Leadership & Practice at University of South Florida

Admiral Michael Mullen

Chairman, Joint Chiefs of Staff (2007-2011)

Ai-jen Poo

Co-founder of National Domestic Workers Alliance; Director of Caring Across Generations, Co-founder of Supermajority

Alastair Campbell

Consultant; Strategist; Communicator; Campaigner; Best-Selling Author; Former Director of Strategy & Communications to Tony Blair

Alastair Humphreys

Adventurer, Microadventurer, Blogger, Motivational Speaker; 2012 National Geographic Adventurer of the Year

Alberto Ruis-Gallardon

Spanish Politician; Former Spanish Minister of Justice; Former Mayor of Madrid

Alejandra Schrader

Award-Winning Author, Plant-Based Nutrition Certified Chef, Food TV Personality & Activist

Alexis Madrigal

Senior Editor at The Atlantic & Author of "Powering the Dream: The History and Promise of Green Technology"

Ali Landry

Former Miss USA, Actress and Owner of Belle Parish Lifestyle Brand

Alison Gopnik

Professor & World Leader in Children's Learning and Development

Allen Sinai, PhD

Chief Global Economist, Strategist, and President of Decision Economics, Inc.

Alvin Poussaint

Psychiatrist, Media Consultant & Author

Ambassador Daniel B. Shapiro

U.S. Ambassador to Israel (2011-2017)

Ambassador Munir Akram

Former Permanent Representative to the UN from Pakistan

Amity Shlaes

Chair of the Coolidge Foundation, Economic Thinker, NYT Best-Selling Author

Amy Lockwood

Deputy Director of Stanford's Center for Innovation in Global Health

Andrew L. Shapiro

Founder and Partner Broadscale Group

Andrew Mason

Co-founder of Detour, Founder and Former CEO of Groupon

Andrew Mwenda

Ugandan Journalist; Founder and Owner of The Independent, Uganda's Premier Current Affairs News Magazine

Andrew Webber

President & CEO, NBCH

Andy Acho

Environmental Initiatives Expert and Former Worldwide Director of Environmental Outreach and Strategy, Ford Motor Company

Angela Glover Blackwell

Founder & Former CEO, PolicyLink

Angela Rose

Professional Speaker, Author, Humanitarian & Entrepreneur

Anna Martemucci

Writer, Actor and Filmaker, Director of "Hollidaysburg," Subject of the Starz Documentary Series, "The Chair"

Annabelle Gurwitch

Actress & Humorist

Anne Mahlum

Social Entrepreneur & Founder of Back on My Feet

Anne Mahlum Sizzle Reel