Reflecting on Donald Trump’s confrontational appearance before the National Association of Black Journalists’ convention in Chicago, one long time acquaintance of the former president dating back to their days in New York City insisted it is time for Trump to leave the public stage. Appearing on MSNBC’s “Morning Joe,” the Rev. Al Sharpton — a host of his own show on MSNBC — went on a tirade about the former president and how he treated the female moderators and the audience and claimed Trump’s act is getting way past old. Sharpton was prompted to address Trump’s controversial appearance by “Mo…