A C-SPAN caller went on a searing rant against ex-President Joe Biden on Tuesday in which she branded him one of the most “evil” and “anti-Black” people in American history. The irate viewer, who was identified as “Barbara in Michigan,” fumed when she called into Washington Journal to answer the show’s big question: “Are you better or worse off financially than in 2024?” Barbara used it as an opportunity to skewer Biden, claiming he was much wor…