Because Barack Obama beat Hillary Clinton down and in the primaries for the democratic nomination for president.
A Democrat could run for the Democratic nomination against an incumbent Democratic President. This happened in 1980 , for example, when Ted Kennedy ran against President Carter. A democrat would not run on the same party lines as another Democrat since the Democratic party can only nominate one candidate themselves. So a third party could nominate a Democrat to run for president if that Democrat lost the Democratic nomination to someone else.
John Glenn ran for the Democratic presidential nomination in 1984. He lost to Walter Mondale.
that he would not seek reelection.
John Glenn, who had been in the Senate for 9 years in 1984, did seek the Democratic nomination to run against incumbent Ronald Reagan, but he was unsuccessful and the nomination went to Walter Mondale. Mondale had been Vice President under Jimmy Carter, and (like Carter) lost to Reagan.
The President Barrack Obama who secured the Democratic nomination with no serious opposition.
Robert Kennedy seemed to have almost a lock on the Democratic nomination in 1968 when he was killed.
can hillary Clinton get the democratic nomination over an incumbent president in 2012
to this day, Barack Obama
He accepted the nomination at the Democratic party's national convention, which was held in Charlotte NC. His acceptance speech occurred on Thursday night, the 6th of September 2012.
Senator Ted Kennedy challenged President Carter for the Democratic nomination in the 1980 primaries. Despite a spirited campaign, Kennedy ultimately lost to Carter, who went on to be the Democratic candidate in the general election, where he lost to Republican candidate Ronald Reagan.
Bill Clinton
Shirley Chisholm was the African American who tried to become President of the United States in 1972. She did not win the Democratic nomination that she needed to get on the ballot.
Yes, an incumbent president has lost his party's nomination before. One notable example is President Jimmy Carter, who lost the Democratic Party's nomination to challenger Ted Kennedy in 1980.
Yes, there have been instances where an incumbent president has lost the nomination for their party. One notable example is President Franklin Pierce, who failed to secure the Democratic Party's nomination for a second term in 1856.
bobby Kennedy
No- he was assassinated while he running for the Democratic nomination in 1968,