The biggest presidential race gaffes

Millions of dollars has gone into the US election race but no amount of money can save the parties from their own candidates' embarrassing gaffes.

Whether it's a tough TV interview or a speech that failed to hit the mark, news crews have been there to capture everything for posterity - to be replayed again and again on the internet. 

Click through to see some of the worst gaffes in the 2012 campaign.