3. Brittany Packnett
Who: Co-Founder of Campaign Zero (along with DeRay Mckesson)
Why: "For taking Black Lives Matter from a hashtag to a platform."
Photo Credit: Stuart Ramson/AP Images for UN Foundation
5. Elizabeth Warren
Who: U..S. Senator, Massachusetts
Why: "The part of Sanders-ism that will survive Sanders."
Photo Credit: Jessica Kourkounis/Getty Images
8. Ghazala Khan
Who: Fabric Store Clerk
Why: "The speech that shook the election," along with husband, Khizr Khan.
Photo Credit: Joe Raedle/Getty Images
11. Carol Anderson
Who: Historian, Emory University
Why: "No, it really is about race."
Photo Credit: Volunteer Emory/Facebook
12. Lori Wallach
Who: Director, Public Citizen's Global Trade Watch
Why: "The trade warriors," along with Michael Froman.
Photo Credit: Scott J. Ferrell/Congressional Quarterly/Getty Images
13. Sara Goldrick-Rab
Who: Professor, Temple University
Why: "For sparking a national conversation about college affordability."
Photo Credit: Sara Goldrick-Rab/Facebook
14. Anne Case
Who: Economist, Princeton University
Why: "For using big data to tell us what's wrong with white people."
Photo Credit: Yana Paskova/For The Washington Post via Getty Images
18. Heather Boushey, Ann O’Leary, and Neera Tanden
Who: Senior Policy Advisers to Hillary Clinton
Why: "The HRC brain trust."
Photo Credit: Win McNamee/Getty Images (L), Martin H. Simon/ABC via Getty Images (C), Alex Wong/Getty Images(R)
22. Madeleine Albright, Lena Dunham, and Gloria Steinem
Who: Former Secretary of State; Writer & Actor; Activist
Why: "Because yes, it does matter that Hillary is a woman."
Photo Credit: Saul Loeb/AFP/Getty Images (L), Jemal Countess/Getty Images (C), Mike Pont/WireImage(R)
23. Gretchen Carlson
Who: Former Fox News Host
Why: "For insisting TV news be held accountable, too."
Photo Credit: Noam Galai/Getty Images for GIFF
29. Sonia Sotomayor
Who: Supreme Court Justice
Why: "A new canary in the highest court."
Photo Credit: Allison Shelley/Getty Images
30. Rukmini Callimachi
Who: Reporter, The New York Times
Why: "The Islamic State truth-tellers," along with Will McCants.
Photo Credit: AP Photo/Rebecca Blackwell
32. Vanita Gupta and Catherine Lhamon
Who: Head of the Justice Department Civil Rights Division; Assistant Secretary for Civil Rights, Department of Education
Why: "Insisting on transgender rights as civil rights."
Photo Credit: AP Photo/ACLU, Molly Kaplan (L), Bryan Bedder/Getty Images for GLSEN Respect Awards (R)
34. Katie Packer
Who: Republican Strategist
Why: "The intellectual #NeverTrump right."
Photo Credit: AP Photo/Josh Reynolds
35. Lorena Gonzalez
Who: State Assemblywoman, California
Why: "The progressive ideas lab."
Photo Credit: AP Photo/Rich Pedroncelli
36. Debbie Stabenow
Who: U.S. Senator, Michigan
Why: "For making food transparent," along with Will Allen.
Photo Credit: Bill Clark/CQ Roll Call
37. Mona Hanna-Attisha
Who: Pediatrician and Medical Professor, Michigan State University
Why: "The Flint whistleblowers," along with Marc Edwards.
Photo Credit: Saul Loeb/AFP/Getty Images
39. Pamela Karlan
Who: Professor, Stanford Law School
Why: "Defending voting rights in the 21st century."
Photo Credit: AP Photo/Manuel Balce Ceneta
40. Shannon Liss-Riordan
Why: "For questioning who the sharing economy is taking for a ride."
Photo Credit: Suzanne Kreiter/The Boston Globe via Getty Images
41. Jennifer Doudna
Who: Biochemist, University of California, Berkeley
Why: "For pushing us to the frontiers of science — and not beyond."
Photo Credit: Steve Jennings/Getty Images for Breakthrough Prize
44. Stephanie Kelton
Who: Economist, University of Missouri-Kansas City
Why: "The case for big spending."
Photo Credit: Tom Williams/CQ Roll Call
46. Katharine Hayhoe
Who: Atmospheric Scientist, Texas Tech University
Why: "The conservative case for fighting climate change."
Photo Credit: REUTERS/Lucas Jackson