David J. Sirota is an American journalist, columnist at The Guardian, editor for Jacobin, author, television writer, and screenwriter. He is also a political commentator and radio host based in Denver. He is a nationally syndicated newspaper columnist, political spokesperson, and blogger. In March 2019, he began working as the senior advisor and speechwriter on the Bernie Sanders 2020 presidential campaign. In 2022, he received an Academy Award nomination for Best Original Screenplay for conceiving the story for Netflix's Don't Look Up alongside co-writer and director Adam McKay.