[8] At the WDP, Tzintzún and co-founder Emily Timm led the organization to focus its efforts on the construction industry, the largest employer of undocumented labor in Texas.

[8] At the close of 2015, the Better Builder program had won agreements on nearly a billion dollars in construction projects covering 10,000 workers.

[12] In 2017, Tzintzún founded Jolt, a civil rights organization that works to increase voter turnout among Latinos in Texas.

[2] Her bid was endorsed by New York representative Alexandria Ocasio-Cortez,[15] Texas representative Joaquin Castro,[16] and actor Alec Baldwin,[17] as well as by the PACs Blue America[18] and Latino Victory Fund,[19] labor unions UNITE HERE Local 23[20] and Communications Workers of America,[21] 350 Action,[22] the Working Families Party,[23] and the University of Texas at Austin University Democrats.

[24] Tzintzún’s campaign was criticized for also accepting an endorsement from actress Susan Sarandon, who had supported Green Party candidate Jill Stein over Hillary Clinton in the 2016 presidential election.

[3] She and fellow former candidates Chris Bell and Michael Cooper then endorsed Royce West, who had advanced with MJ Hegar to the Democratic primary runoff.

[30] Tzintzún is also an author on issues of race, gender and immigration her work has appeared in the Huffington Post, The Dallas Morning News and Al Jazeera and in the following publications: