John McCainJohn Sidney McCainCNN's Ana Navarro to host Biden roundtable on making 'Trump a one-term president' Mark Kelly clinches Democratic Senate nod in Arizona Prominent conservatives question Jerry Falwell Jr. vacation photo MORE conceded the presidential election to Barack ObamaBarack Hussein ObamaHearing for Twitter hack suspect Zoom-bombed by porn, rap music Read: Sally Yates testimony Michelle Obama says she is managing 'low-grade depression' MORE and called for his backers to come together with supporters of his former opponent.

McCain said that the American people had spoken clearly. He also recognized the historic nature of Obama's win.

"I recognize it what it means for African-Americans," McCain said. "I always believe that America offers opportunity for all who have the industry and will to receive it."

He added also put out a call for unity behind the new president-elect.

"Sen. Obama and I had argued our differences and he has prevailed," he said. "No doubt many of those differences remain. These are difficult times for our country, and I pledge to him tonight to do all in my power to help him lead us in the many challenges that we face."

He added: "I urge all Americans who supported me to join me in not just congratulating him, but offering our next president good will and earnest effort to find ways to come together to find the necessary compromises to bridge our differences."