as 'sharp as he was 31 years ago' - just hours before the 76-year-old wrongly claims MLK and RFK were assassinated in the 'late 70s' Dr. Neal Kassell insisted Biden ‘is every bit as sharp as he was 31-years-ago,’ and said he’s hasn’t seen ‘any change’ in his patient over the last few decades Just hours later Biden managed to place two of the most historically poignant moments of the 1960s in the wrong decade during a speech in Urbandale, Iowa He wrongly claimed that the weeks-apart 1968 assassinations of Martin Luther King Jr. and Robert F. Kennedy happened in...