Chants of "Mitt! Mitt! Mitt!" rose from the crowd as Republican Mitt Romney closed his concession speech.
He kissed his wife, Ann, who joined him on stage in Boston, and gave running mate Paul Ryan a big hug.
"I so wish that I had been able to fulfil your hopes to lead the country in a different direction," Romney said during his remarks, "but the nation chose another leader."
During his speech former Massachusetts governor said it was time to put aside partisan bickering and work together for the good of the country.
"At a time like this, we can't risk partisan bickering and political posturing. Our leaders have to reach across the aisle to do the nation's work."
"We look to Democrats and Republicans in government at all levels to put people before the politics," Romney said.
"I believe in America. I believe in the people of America. ... I ran for office because I'm concerned about America. This election is over, but our principles endure."
Romney told supporters he would pray for Barack Obama's success in leading the nation.
Romney lost nearly all the major battleground states to Obama including Ohio, the hardest fought prize.