President Obama ran for re-election in 2012. His main opponent was a Republican business executive and former governor of Massachusetts named Mitt Romney. There were also third-party candidates such as Libertarian Gary Johnson on the ballot, but the majority of the votes were divided between Mr. Obama and Mr. Romney.
Before there was a presidential race between the Democrat and the Republican, both parties had to choose their nominee. The Republicans chose John McCain, but there was a hard-fought battle for the Democratic nomination between Hillary Clinton and Barack Obama. Mr. Obama won the nomination, and then went up against John McCain, defeating him by a wide margin.
In 2008, his main opponent was US Senator John McCain, a Republican from Arizona. In 2012, his main opponent was former governor Mitt Romney, a Republican from Massachusetts.
In 2008, Barack Obama fought a long and tough battle against Hillary Clinton, before finally earning the nomination.
In the 2008 election, Mr. Obama first ran against Hillary Clinton to get the Democratic party's nomination for president. He then ran against the Republican party's nominee, John McCain, and defeated him.
Senator John McCain ran against Barack Obama for what became Obama's second term.
Senator John McCain ran against Barack Obama for what became Obama's second term.
In 2008, Barack Obama won the Democratic nomination by defeating Hillary Clinton. He then went up against the Republican nominee, Senator John McCain of Arizona. Mr. Obama won that election and became president. In 2012, he ran for re-election. His Republican opponent was former Massachusetts governor Mitt Romney; and again, Mr. Obama was the winner.
After losing the Democratic Primary nomination for President to Barack Obama, Hillary Rodham Clinton later became Obama's Secretary of State. Clinton at the time was the former First Lady, and the US Senator from New York.
John McCain
Alton B. Parker was the Democratic Party Presidential Nominee who ran against Theodore Roosevelt in 1904, and John W. Davis was the Democratic Nominee who ran against Calvin Coolidge in 1924.
Obama's main opponent was Hillary Clinton, the senator from New York.
John Kerry was the Democratic candidate against Bush in 2004.
Since his first time running for office in 1996, Mr. Obama ran as a Democrat. He was always a member of the Democratic party, throughout his political career.
No one, because 2007 wasn't an election year.
William Taft ran against William Jennings Bryan, who was a member of the Democratic Party.William Bryan