Cheng graduated with a bachelor of arts degree in political science and economics from Swarthmore College in 2001.

[9] Cheng joined the Joe Biden 2020 presidential campaign as senior advisor for external outreach.

[10] In May 2021, it was announced that Cheng would executive produce "Recipe for Change" for YouTube alongside LeBron James, Maverick Carter, Michelle Kwan, Jamal Henderson and Philip Byron.

The special, set to air June 16, 2021 and produced by the SpringHill Company, will bring together Asian American celebrities, chefs, activists, and creators to celebrate API culture and discuss the recent and historic acts of hate and violence against the API community.

[14] In November 2023 Cheng joined the Biden Administration as the Deputy Director of the White House Office of Political Strategy and Outreach.