US-VOTE-2012-DEBATE
US President Barack Obama stands with First Lady Michelle Obama following the third and final presidential debate with Republican presidential candidate Mitt Romney at Lynn University in Boca Raton, Florida, October 22, 2012. The showdown focusing on foreign policy is being held in the crucial toss-up state of Florida just 15 days before the election and promises to be among the most watched 90 minutes of the entire 2012 campaign. AFP PHOTO / Saul LOEB (Photo credit should read SAUL LOEB/AFP/Getty Images)
US-VOTE-2012-DEBATE
Republican presidential candidate Mitt Romney gestures beside his wife Ann following the third and final presidential debate with US President Barack Obama at Lynn University in Boca Raton, Florida, October 22, 2012. The showdown focusing on foreign policy is being held in the crucial toss-up state of Florida just 15 days before the election and promises to be among the most watched 90 minutes of the entire 2012 campaign. AFP PHOTO / Saul LOEB (Photo credit should read SAUL LOEB/AFP/Getty Images)
US-VOTE-2012-DEBATE
US President Barack Obama and his wife Michelle greet attendees at the end of the third and final presidential debate October 22, 2012 at Lynn University in Boca Raton, Florida. AFP PHOTO/Mandel NGAN (Photo credit should read MANDEL NGAN/AFP/Getty Images)
US-VOTE-2012-DEBATE
US President Barack Obama and Republican presidential candidate Mitt Romney shake hands at the end of the third and final presidential debate October 22, 2012 at Lynn University in Boca Raton, Florida. AFP PHOTO/Mandel NGAN (Photo credit should read MANDEL NGAN/AFP/Getty Images)
US-VOTE-2012-DEBATE
US President Barack Obama and Republican presidential candidate Mitt Romney take their seats for the third and final presidential debate October 22, 2012 at Lynn University in Boca Raton, Florida. AFP PHOTO/Mandel NGAN (Photo credit should read MANDEL NGAN/AFP/Getty Images)
US-VOTE-2012-DEBATE
US President Barack Obama arrives on stage for the third and final presidential debate October 22, 2012 at Lynn University in Boca Raton, Florida. AFP PHOTO/Mandel NGAN (Photo credit should read MANDEL NGAN/AFP/Getty Images)
US-VOTE-2012-DEBATE
US President Barack Obama embraces his wife Michelle at the end of the third and final presidential debate October 22, 2012 at Lynn University in Boca Raton, Florida. AFP PHOTO/Mandel NGAN (Photo credit should read MANDEL NGAN/AFP/Getty Images)
US-VOTE-2012-DEBATE
US President Barack Obama embraces his wife Michelle at the end of the third and final presidential debate October 22, 2012 at Lynn University in Boca Raton, Florida. AFP PHOTO/Mandel NGAN (Photo credit should read MANDEL NGAN/AFP/Getty Images)
US-VOTE-2012-DEBATE
US President Barack Obama (2nd-R) and Republican presidential candidate Mitt Romney participate in the third and final presidential debate at Lynn University in Boca Raton, Florida, on October 22, 2012. The final debate before the November 6 election is focusing on foreign policy. Television journalist Bob Schieffer (R) moderates. AFP PHOTO / Jewel Samad (Photo credit should read JEWEL SAMAD/AFP/Getty Images)
US-VOTE-2012-DEBATE
US President Barack Obama shakes hands with Republican presidential candidate Mitt Romney at the end of the third and final presidential debate October 22, 2012 at Lynn University in Boca Raton, Florida. AFP PHOTO/Mandel NGAN (Photo credit should read MANDEL NGAN/AFP/Getty Images)
US-VOTE-2012-DEBATE
Republican presidential candidate Mitt Romney speaks during the third and final presidential debate with US President Barack Obama at Lynn University in Boca Raton, Florida, on October 22, 2012. The showdown focusing on foreign policy is being held in the critical toss-up state of Florida just 15 days before the election and promises to be among the most watched 90 minutes of the entire 2012 campaign. AFP PHOTO/Jewel Samad (Photo credit should read JEWEL SAMAD/AFP/Getty Images)
US-VOTE-2012-DEBATE
Republican presidential candidate Mitt Romney and his wife Ann wave following the third and final presidential debate with US President Barack Obama at Lynn University in Boca Raton, Florida, October 22, 2012. The showdown focusing on foreign policy is being held in the crucial toss-up state of Florida just 15 days before the election and promises to be among the most watched 90 minutes of the entire 2012 campaign. AFP PHOTO / Saul LOEB (Photo credit should read SAUL LOEB/AFP/Getty Images)
Barack Obama, Mitt Romney
Republican presidential candidate, former Massachusetts Gov. Mitt Romney and President Barack Obama shake hands at the end of the last debate at Lynn University, Monday, Oct. 22, 2012, in Boca Raton, Fla. (AP Photo/Pablo Martinez Monsivais)
President Barack Obama and Michelle wave to members of the audience following the third presidential debate with Republican presidential nominee Mitt Romney at Lynn University, Monday, Oct. 22, 2012, in Boca Raton, Fla. (AP Photo/David Goldman)
Barack Obama, Mitt Romney
Republican presidential candidate, former Massachusetts Gov. Mitt Romney and President Barack Obama shake hands at the end of the last debate at Lynn University, Monday, Oct. 22, 2012, in Boca Raton, Fla. (AP Photo/Pablo Martinez Monsivais)
Republican presidential nominee Mitt Romney and his wife Ann shake hands with audience members following the third presidential debate with President Barack Obama at Lynn University, Monday, Oct. 22, 2012, in Boca Raton, Fla. (AP Photo/Eric Gay)
Barack Obama, Michelle Obama,
President Barack Obama, left, gives a thumbs-up as he is joined on stage by first lady Michelle Obama, right, at the end of the last debate against Republican presidential candidate, former Massachusetts Gov. Mitt Romney at Lynn University, Monday, Oct. 22, 2012, in Boca Raton, Fla. (AP Photo/Pablo Martinez Monsivais)
Republican presidential nominee Mitt Romney, right, and President Barack Obama shake hands with audience members following the third presidential debate at Lynn University, Monday, Oct. 22, 2012, in Boca Raton, Fla. (AP Photo/Eric Gay)
Republican presidential nominee Mitt Romney and his wife Ann wave to audience members following the third presidential debate with President Barack Obama at Lynn University, Monday, Oct. 22, 2012, in Boca Raton, Fla. (AP Photo/David Goldman)
Barack Obama, Mitt Romney
Republican presidential nominee Mitt Romney answers a question as President Barack Obama listens during the third presidential debate at Lynn University, Monday, Oct. 22, 2012, in Boca Raton, Fla. (AP Photo/Charlie Neibergall)
President Barack Obama smiles as Republican presidential nominee Mitt Romney speaks during the third presidential debate at Lynn University, Monday, Oct. 22, 2012, in Boca Raton, Fla. (AP Photo/Pool-Rick Wilking)
The Huffington Post UK | By Ned Simons Posted: 24/10/2012 14:17 BST Updated: 04/11/2012 20:01 GMT