LIVE BLOG: Obama Wins Re-election

Romney starts by congratulating Obama and wishing him and his family well.

He also thanks his running mate Paul Ryan for helping with the campaign.

Mitt Romney has just walked out on stage in Boston to deliver his concession speech.

Watch video shot by The Guardian as President Obama's supporters learn he has won enough electoral votes to secure a second term:

CNN's Candy Crowley reporting that Obama and Romney have spoken by phone following the election results.