During an appearance on MSNBC on Sunday afternoon, noted political scientist Larry Sabato expressed extreme alarm at Donald Trump antics over the past few weeks and said there is a legitimate concern about the former president’s sanity. Speaking with host Alex Witt, the founder of the Center for Politics at the University of Virginia said the polls are still exceedingly tight for the election that is slightly over two weeks away. Adding that voters need to take a serious “measure” of both nominees before heading to the polls, he suddenly changed direction and expressed concerns about the forme…