Taiwan’s Premier Cho Jung-tai has warned the chairwoman of the main opposition party Kuomintang (KMT) against engaging in talks or agreements involving government authority when she visits mainland China next month. Cheng Li-wun’s coming visit has rattled Taiwan’s ruling Democratic Progressive Party (DPP) and exposed unease even within KMT ranks – highlighting mounting friction over the opposition outreach to Beijing amid heightened tensions across the Taiwan Strait. Cheng is expected to lead a...