The presidency of Barack Obama began at noon EST on January 20, 2009, when Barack Obama was inaugurated as the 44th President of the United States, and ended on January 20, 2017. Obama, a Democrat from Illinois, took office following a decisive victory over Republican John McCain in the 2008 presidential election. Four years later, in the 2012 election, he defeated Republican Mitt Romney to win re-election. Obama was succeeded by Republican Donald Trump, who won the 2016 presidential election. With Republican President George W. Bush term limited, the Republicans nominated Senator John McCain of Arizona for the presidency. In the general election, Obama defeated McCain, taking 52.9% of the popular vote and 365 of the 538 electoral votes. In the Congressional elections, Democrats added to their majorities in both houses of Congress, and Speaker of the House Nancy Pelosi and Senate Majority Leader Harry Reid both remained in their posts. Republicans John Boehner and Mitch McConnell continued to serve as House Minority Leader and Senate Minority Leader, respectively. 10 Approval ratings and other opinions.
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