Obama was President from 2009 to 2017.
As of 2016, Obama is still the President.
Since 2008, the US President has been Barack Obama. He was re-elected in 2012. Under US law, he cannot run for a third term, so in 2016, a new president will be elected.
Either Barack Obama or Mitt Romney will be President in 2016. (Maybe you meant to ask about 2017.)
George W. Bush was the US President in September 2008.
Barack Obama.
Legal slavery ended in the US in 1865. President Obama was elected in 2008.
Barack Obama
Barack Obama was first elected president in November 2008, and re-elected in November 2012. He served the two terms a US president is allowed to serve and was not allowed to run again in 2016. He officially left office in January 2017.
Barack Hussein Obama is the current President of the USA in 2016, and he will be up until November 2016. After that, a new President will be elected and this will either be Donald Trump or Hilary Clinton.
Donald Trump is the current president of the United States. Joe Biden has been named President-elect in the latest election, meaning he will be inaugurated as the 46th president on January 20, 2021.
In the US, Presidents are elected, not appointed. President Obama was elected in November 2008, and he took office in January 2009.
At the moment, 2008, the US president is George W. Bush. The president elect is Barack H. Obama, he will formally take over from president Bush early in 2009.