Barack Obama has been re-elected as US president, defeating Republican challenger Mitt Romney.
The incumbent Democrat president achieved the number of electoral college votes needed for a second term on Tuesday evening (November 6) and posted a message to Twitter, saying: "We're all in this together. That's how we campaigned, and that's who we are. Thank you. -bo"A post from Obama's team simply saying "Four more years" - along with a picture of the president and first lady Michelle Obama embracing - has since become the most retweeted message in the social networking site's history, according to
Twitter's Government and Politics team.
Celebrities and media figures from across the political spectrum were quick to react to news of Obama's re-election shortly after US broadcast networks called the result of the election at around 11.20pm ET (4.20am on Wednesday, November 7 in the UK).
Armando Iannucci, creator of
Veep and
The Thick of It: "Mitt Romney, your team took one hell of a very close race... I'm heading down to the White House."
Whoopi Goldberg: "I'm so happy, now that it appears Prez.Obama has won will all you racists & nasty vitriolic angry folks go away & take your crap [with] you. We as Americans have work to do & we dont have time 4 bulls**t & we don't have time 4 ur bulls**t.Prez.Obama won & crying foul ain't gonna fly."
Ricky Gervais: "Well Done America. We knew you'd get it right. #ObamaWins"
Eva Longoria: "Amazing speech by @BarackObama re-elected for his 2nd term! America is and can be united for the greater good of all Americans!
Katy Perry: "The people have the power! Proud to stand by you for 4 more years."
Michael Moore: "This... Is America. 2012. The old days, the old ways, officially gone. This is who we are now. Sorry, world, that you even had to worry..."
Mariah Carey: "Incredible speech!!!!!! Watching in a room full of diverse people - all truly moved. Thank you America for President Obama - 4 more yrs."
Kelly Osbourne: "Thank God #Obama2012 has victoriously won I feel safer now there hopefully wont be a world war III & gays can finally get married! #victory"
Donald Trump: "Well, back to the drawing board! He lost the popular vote by a lot and won the election. We should have a revolution in this country... This election is a total sham and a travesty. We are not a democracy! Our country is now in serious and unprecedented trouble...like never before. Our nation is a once great nation divided! The electoral college is a disaster for a democracy."
Ian Somerhalder: "I'm so proud of us as a people.Even people in other countries contributed to this event. A global group hug...Wow. Wow. Wow."
Lady GaGa: "I just got off stage in Columbia!! Congratulations Mr President @BarackObama We are so proud to be American tonight! YES!!! YES! YES!! We just couldn't be happier my goodness, the joy when freedom prevails."
Ricky Martin: "Mitt, remember that 47%? #4moreyears #Obama2012"
Justin Bieber: "A lot of emotions right now. congrats President Obama... I'm Canadian. I'm good. #FreeHealthcare
"
Russell Simmons: "We have incredible momentum to build upon the remarkable accomplishments of [Obama's] first term, and I very much look forward to working with his administration to further advance the goal of creating an America built to last.
"There are many challenges that still face this nation, however I am confident that President Obama through his leadership will restore our democracy to the people. We must find more ways to work together, as the future is not a Democratic future or a Republican future, but an American future."