On April 4 , 2011 , Obama announced his reelection campaign for 2012 in a video titled " It Begins with Us " that he posted on his website and filed election papers with the Federal Election Commission . As the incumbent president he ran virtually unopposed in the Democratic Party presidential primaries , and on April 3 , 2012 , Obama had secured the 2778 convention delegates needed to win the Democratic nomination
convention
2012 Democratic National Convention
Barack Obama