Resistance efforts. On Saturday, Senator Elizabeth Warren addressed the crowd, as did MD Gubernatorial candidate Ben Jealous. At the closing keynote, Mustafa Ali interviewed Former Vice President Al Gore on climate justice issues and the recent release of the sequel to An Inconvenient Truth, called An Inconvenient Sequel. As the conference ended, many participants, led by labor organizer Dolores Huerta and others, the marched to the State Capitol Building in protest over the right-wing violence in Charlottesville, VA earlier that day, which resulted in the death of Heather Heyer. 2018 Netroots Nation 2018 was held August 2–4 in New Orleans, Louisiana; attendance estimated at 3,000. The opening keynote featured New Orleans Mayor LaToya Cantrell, and candidate Gina Ortiz Jones. Colette Pinchon Battle of the Gulf Coast Center for Law & Policy spoke about grassroots organizing, and Jackson MS Mayor Chokwe Antar Lumumba challenged the audience to dismantle structural disenfranchisement. There was a featured panel discussion (titled "Hidden Figures") led by women of color strategists about how they are organizing in critical states for 2018. Sens. Elizabeth Warren, Cory Booker and Kamala Harris delivered keynote addresses on Friday. Among Friday's featured panels was "Race-Class: How to Build a Truly Multi-racial Movement for Racial Justice and Shared Prosperity for all." At Saturday's closing keynote, Idaho gubernatorial candidate Paulette Jordan, and New York gubernatorial candidate Cynthia Nixon addressed the crowd. Congressional candidate Alexandria Ocasio-Cortez called for social, economic and racial justice for all working class Americans. Former U.S. Secretary of Housing and Urban Development Julian Castro challenged progressives to reach, register and mobilize the strong majority of Americans who want change now. 2019 Netroots Nation 2019 was held July 11-13 in Philadelphia, Pennsylvania, at the Pennsylvania Convention Center. The estimated attendance was 3,600. Democratic Party Presidential candidates Julián Castro, Kirsten Gillibrand, Jay Inslee, and Elizabeth Warren were in attendance. Notably, candidate Bernie Sanders did not personally attend, but he was represented by others from his 2020 campaign, including national co-chair Nina Turner. Also in attendance were Ilhan Omar, Ayanna Pressley, and Rashida Tlaib. They are three of four members of the informal group of freshman U.S. Representatives which includes Alexandria Ocasio-Cortez, known as "The Squad", who are all progressive women of color. The start of the convention took place in the midst of protests, a block away, at 171-year-old Hahnemann University Hospital. The protests were in resistance to the closure of the hospital,