Barack Obama has congratulated David Cameron on his re-election as Prime Minister.
In a statement the US President said: "I congratulate Prime Minister Cameron on his impressive electoral victory.
"The special and essential relationship between the United States and the United Kingdom is rooted in deep and abiding shared interests and values.
"I have enjoyed working closely with Prime Minister Cameron on a range of shared interests these last several years, and I look forward to continuing to strengthen the bonds between our countries, as we work together on behalf of global peace, security and prosperity."
Americans will elect Obama's successor on 8 November next year.
GENERAL ELECTION 2015