A high-profile candidate with a disputed legal status has jumped into Taiwan's Zhubei mayoral race, setting up a fight with the Taiwan People's Party ahead of year-end local elections.

• Li Chen-hsiu, Taiwan's first legislator born in mainland China, says she will run for mayor of Zhubei.
• The move puts her against Chiu Chen-yuan, the candidate the Taiwan People's Party already picked for the city.
• She lost her legislative seat in April over a dual-nationality dispute and was expelled from the party.
• Her eligibility is unclear — election officials say former mainland residents must prove they gave up Chinese household registration ten years before running.
• Her platform covers traffic, schools, parks, the environment, and city management.

Outlook: The Central Election Commission's ruling on whether she can register will decide if the challenge goes anywhere.