Taipei's incumbent mayor is heading into a re-election fight and has already said yes to a televised debate, setting up a direct clash with his main opponent.

• Chiang Wan-an is sending a proxy to file his papers before registration closes for the year-end local elections.
• He ticked the box agreeing to a debate, pointing to the one Taipei held four years ago against Chen Shih-chung and Huang Shan-shan.
• His main rival is the DPP's Puma Shen, with three minor-party candidates also in the race.
• Taipei was the only one of Taiwan's six big cities to stage a mayoral debate last cycle, so agreeing early matters.

Outlook: With both leading candidates open to it, a Taipei mayoral debate looks likely as the campaign gets going.