Taiwan's year-end local elections are shaping up as a real contest in Taipei, where the challenger is gaining ground but the incumbent still holds a clear lead.

• DPP candidate Puma Shen has built unexpected momentum after three months of campaigning, drawing crowds who show up early to greet him on walkabouts.
• His warm, sincere style is pulling in voters and lifting DPP city council candidates riding his coattails.
• Mayor Chiang Wan-an is deliberately keeping things quiet — he skipped registering in person and is leaning on the mayor's job itself for daily exposure.
• City hall scandals over child abuse cases, favoritism around Chiang's son, and a costly sunshade project have cost him an estimated two to three points.
• Shen's support is concentrated among younger online voters and he remains little known to people over fifty, leaving a gap of more than ten points.

Outlook: Swing voters will decide it, and how city hall handles the next round of scandals will determine whether that small gap closes or widens.