Investors, reports the Wall Street Journal, are likely to welcome the result. The government of Donald Tusk will have a member of its own party as Poland's President, ending a period of 'cohabitation'.
Mr Komorowski is sympathetic to Mr Tusk's agenda of budget cuts, deregulation and privatisation. Polish politics is divided into two conservative parties. The more socially conservative, nationalistic and rural party of Kaczynski and the more market-orientated, pro-EU party of Tusk – the Civic Platform.