The purpose of this book is to analyse the influence of domestic politics on congressional intervention in US policy towards China with special reference to three factors which might loosely be termed structural factors: partisanship, constituency and committees. The analysis is conducted by examining two issues: China's most-favoured-nation (MFN) status and the Taiwan issue during the Republican George Bush administration (1989-1992) and most of the Democratic Bill Clinton administration (1993-1999).