Who is the current President of the United States as of October 2023?

Joe Biden is the current President of the United States as of October 2023. He was inaugurated on January 20, 2021, following the 2020 presidential election. Biden, a member of the Democratic Party, previously served as Vice President from 2009 to 2017 under President Barack Obama before running for the presidency himself. His administration has focused on various issues, including the COVID-19 pandemic response, economic recovery, and climate change.

This context helps clarify why the other candidates listed are not the current president. Donald Trump served as the 45th president from 2017 to 2021. Barack Obama was the 44th president and served two terms from 2009 to 2017. Kamala Harris, while a significant figure as the Vice President, is not the president herself.