In 2017, Xiong founded the brand Mai&Co, an apparel company inspired by traditional
Hmong clothing. She is fluent in the
Hmong language and helps as a language interpreter for a translation and interpretation organization. She is also a coordinator for Adopt-A-County Road, a program where participants help maintain roads by cleaning up trash and litter. In August 2020, Xiong challenged incumbent Macomb County Commissioner Marvin Sauger in the Democratic primary where she finished in first place with 37.3% of the vote. Xiong later won the general election in November with 54.5% of the vote. During her first term, Xiong led the commission in appropriating $300,000 for the 2023 budget to go towards the county's food pantry distribution program. Xiong also worked to increase funding for Turning Point, a nonprofit intended to support victims of
domestic violence and
sexual assault. In addition, she also worked to secure funding for Martha T. Berry, a county
health facility that works with the
elderly. In 2023, Xiong challenged
Warren City Clerk Sonja Buffa. Despite making it through the primary, Xiong lost the general election with 46.2% of the vote. In 2023,
Lori Stone, a
Michigan State Representative,
resigned after being elected mayor of Warren. Xiong announced her candidacy for the special election and won the Democratic primary in January 2024. She later won the general election with 65.6% of the vote. In March 2025, Xiong broke party lines to vote in favor of a resolution urging enforcement of the federal ban on transgender girls in women’s sports (HR 0040), but later in August voted against House Bill 4066, which would have codified such restrictions into Michigan law. == Personal life ==