Cheng Li-wun is set to begin a two-week U.S. tour as Beijing urges Washington to rethink its support for Taipei.

Cheng Li-wun is set to begin a two-week U.S. tour as Beijing urges Washington to rethink its support for Taipei.

Cheng, chairwoman of the Kuomintang (KMT), Taiwan's largest opposition party, leaves for a two-week US trip later on Monday, following on from her April visit to China, where she…