Taiwan's biggest local election battle is now a coin flip, bad news for the KMT after its candidate started with a big lead.

• The DPP's Su Chiao-hui has erased Li Si-chuan's lead in New Taipei, with polls now tied.
• Su is trying to win back the city her father Su Tseng-chang handed over 22 years ago.
• The KMT's own polling shows Li ahead overall but losing Banqiao, the city's biggest and decisive district.
• A KMT councilor's shouting incidents — first at a commentator, then at hospital staff — are feeding an image problem of an evasive mayor and aggressive party members.

Outlook: New Taipei looks like a genuine toss-up, and the KMT's behavior problems could keep pushing voters toward the DPP.