The 80-year-old president has repeatedly embarrassed the U.S. by stumbling upstairs and across stages while also mumbling his words, making Americans question if he even knows he is the president. Biden's health is such a major concern that even Left-leaning outlets question whether he is up for the job or not. Politico columnist Jack Schafer demanded a stronger primary challenger for Biden— one that would toughen the president up and would "prepare us" in case he's "seriously injured" or "dies one evening." Titled "Why Democrats Should Primary Biden," Schafer argued that the senior president is not up for a second...