Becca Siegel is a political strategist and data expert. She most recently oversaw polling, analytics, and voter outreach strategy on the 2024 Biden and Harris presidential campaigns. In 2020, she served as chief analytics officer at Biden for President, leading a team of more than 160 data scientists, analysts, and engineers through the primary and general elections. Siegel later joined the White House COVID-19 Response Team as a senior adviser, using data to shape federal pandemic and vaccination efforts.