【明報專訊】HAN Kuo-yu, mayor of Kaohsiung, made a visit to Hong Kong, Macao, Shenzhen and Xiamen spanning seven days and six nights last week, provoking a whirlwind of emotions across the Taiwan Strait. While he has succeeded in clinching a deal on agricultural products worth more than five billion New Taiwan Dollars, he has also attracted a lot of controversies. On the one hand, the Kuomintang, in view of his huge popularity, is reported to be considering "drafting" him to run in the 2020 presidential election. On the other hand, the Democratic Progressive Party (DPP) and the green camp have repeatedly criticised his visit for possibly "a betrayal of Taiwan".