Dick Morris, former adviser to Bill Clinton, last week published an editorial in which he strongly suggested that Joe Biden has been exhibiting “gaffs” that are sufficiently bizarre and numerous to indicate real mental decline. He then goes on to present a petition for readers to sign demanding that Biden submit to several tests to determine whether he is suffering from any one of several types of dementia. A similar article from another source also came out in Breitbart on the web. In that piece several Sanders supporters made similar allegations. The counter argument, of course, is that these individuals are ...