Political cycles in the US and UK have influenced economic performance and equity markets over the past several decades. In the US, Republican and Democratic parties have alternated in power, with strong economic periods under Reagan in the 1980s, Clinton in the 1990s, and Bush in the 2000s. Similarly, the UK saw booms under Thatcher in the 1980s and Blair in the 1990s. Going forward, challenges around inflation, entitlement spending, and government resistance to reform may slow growth. The 2006 US elections may strengthen Democrats and slow policy changes, while Blair's support in the UK will likely continue falling.