Taiwan's opposition alliance has broken down in Hsinchu County, a setback for both parties heading into the 2026 local elections.

• The TPP says the KMT and its Hsinchu County magistrate candidate Hsu Hsin-ying broke promises, wrecking two years of trust between the two parties.
• Hsinchu County races are now exempt from the KMT-TPP joint local election pact, leaving the TPP free to pick its own partners there.
• Any TPP member who campaigns for, endorses, or works for a rival candidate can be expelled from the party.
• The trigger was a KMT county branch letter barring its own members from campaigning for anyone the KMT did not nominate.
• The TPP has drafted Chiu Chen-yuan for Zhubei mayor and is ordering all its officials and candidates to back him.

Outlook: The two parties will likely fight each other in Hsinchu County, splitting the opposition vote and testing whether their cooperation survives elsewhere.