Common exam questions focus on the factions within American parties. Driven by the fact America is a 50/50 nation, and arguably that there are 100 parties (one Democrat and one Republican in each state), the parties in the US are, inevitably, ‘big tents’. On military action however the Republicans are usually more united. This article outline the factions within the Republican party currently over whether to act on Syria or not. The key question to try to ascertain, is whether those against military action are because their constituents are (therefore highlighting the importance of the States) or because Obama, at least initially, appeared for it (therefore a good example of the partisanship that exists in US politics).