Joe Biden turned 78 today. When he’s sworn in as president in two months, he will become the oldest U.S. president in history. Throughout his campaign, there have been concerns about his mental toughness and stamina for the job. Dr. Brian Ott, head of the department of communication at Missouri State University, studies presidential rhetoric. He shares with the Associated … [Read more...] about How is President-elect’s Joe Biden’s presidential rhetoric?