A year after US special forces shot dead the world's most wanted terrorist, bin Laden's death has sparked a furious political row. A risky tactic by President Obama - now could it backfire?

They will be crucial in November's election: and they're not impressed by the Republicans. Now President Obama is reaching out to women voters - with a co-ordinated campaign.

Nine caucuses and five presidents? Writing for Channel 4 News, journalist Tawanda Kanhema tracks the US presidential caucuses alongside Zimbabwe's treacherous path to democracy.

The 2012 US presidential campaign begins in earnest today when Republicans in the predominantly rural state of Iowa vote to decide who they want to represent them in November's election.

From the Arab Spring to the eurozone crisis, Channel 4 News casts an expert eye on the events that changed the world this year.

President Barack Obama is cosying up to Australia - but the Chinese are not impressed. Read more from our Asia Correspondent John Sparks.

This is not class warfare - it's math. President Obama unveils deficit cuts worth $3 trillion - including a new tax on millionaires.