US election 2012
Barack Obama and Mitt Romney debate in Hempstead, New York.
Verdict: a win for Obama has Romney imploded over Libya.
The second presidential debate will focus on the economics of the middle classes, writes CAP's Heather Boushey.
Yes, "it's the economy, stupid" is true, but other issues are influencing voters counter-intuitively, too.
US voters are more socially liberal and increasingly concerned with "fairness", rather than simply "freedom".
Starting at 2am BST, a live stream of Joe Biden and Paul Ryan's debate.
Our US blogger Nicky Woolf is live-blogging the vice-presidential debate between Joe Biden and Paul Ryan.