What is Barack Obamas role as president?

Barack Obama served as the 44th President of the United States from 2009 to 2017. His role involved leading the executive branch of the federal government, implementing and enforcing laws, and setting national policies on various issues such as healthcare, foreign relations, and climate change. Obama is also known for his efforts to promote economic recovery following the 2008 financial crisis and for being the first African American president in U.S. history. His presidency focused on themes of hope and change, aiming to unite the country and promote social justice.