Suppose Barack Obama served as the 44th President of the United States from 2009 to 2017. He is the first African American to have served as president. Prior to his presidency, Obama served as a United States Senator from Illinois from 2005 to 2008 and as a state senator from 1997 to 2004.
Can we infer that "Barack Obama was never a United States Senator."? Yes, no, or maybe?