變更

=== 2012年总统选举 ===

2011年4月4日，奥巴马在自己网站上一个名为"It Begins with Us"的-{zh-hant:影片;zh-hans:视频}-中正式对外宣布参加2012年总统竞选，同时向[[美国联邦选举委员会]]提交有关文件。<ref>{{cite quick|1=news |title=Obama Begins Re-Election Facing New Political Challenges |url=http://thecaucus.blogs.nytimes.com/2011/04/04/obama-launches-re-election-facing-new-political-challenges/ |date=2011-04-04 |first=Michael D. |last=Shear |work=The New York Times |separator=, |accessdate=2011-04-05 |archiveurl=https://web.archive.org/web/20110405205656/http://thecaucus.blogs.nytimes.com/2011/04/04/obama-launches-re-election-facing-new-political-challenges/ |archivedate=四月 5, 2011 |deadurl=yes }}</ref><ref>{{cite quick|1=news |title=Obama announces re-election bid |url=http://www.upi.com/Top_News/US/2011/04/04/Obama-announces-re-election-bid/UPI-95081301905800/?dailybrief |date=2011-04-04 |agency=[[United Press International]] |separator=, |accessdate=2011-04-05 |archiveurl=https://web.archive.org/web/20110510011832/http://www.upi.com/Top_News/US/2011/04/04/Obama-announces-re-election-bid/UPI-95081301905800/?dailybrief |archivedate=五月 10, 2011 |deadurl=yes }}</ref><ref>{{cite quick|1=news |title=Obama Opens 2012 Campaign, With Eye on Money and Independent Voters |url=http://www.nytimes.com/2011/04/05/us/politics/05obama.html?scp=1&sq=obama%202012&st=cse |date=2011-04-04 |first=Jeff |last=Zeleny |work=The New York Times |first2=Jackie |last2=Calmes |separator=, |lastauthoramp=yes |accessdate=2011-04-05 |archiveurl=https://web.archive.org/web/20110511230822/http://www.nytimes.com/2011/04/05/us/politics/05obama.html?scp=1&sq=obama%202012&st=cse |archivedate=五月 11, 2011 |deadurl=yes }}</ref>作为现任总统，奥巴马在民主党内初选中几乎没有受到任何阻碍。<ref name="CNN-clinch1">{{cite quick|news|url=http://politicalticker.blogs.cnn.com/2012/04/03/leading-presidential-candidate-to-clinch-nomination-tuesday/|title=Leading presidential candidate to clinch nomination Tuesday|publisher=CNN|author=Yoon, Robert|date=2012-04-03|accessdate=2012-05-02}}</ref>2012年4月3日，奥巴马就已获得党内提名所需的最少2778张票。<ref name="CNN-clinch2">{{cite quick|news|url=http://politicalticker.blogs.cnn.com/2012/04/03/breaking-obama-clinches-democratic-nomination/|title=Obama clinches Democratic nomination|publisher=CNN|date=2012-04-03|accessdate=2012-04-03}}</ref>