How Johnson has one more vote (and it is one) than Nixon, I don't know.
PBS has done some excellent documentaries on Reagan. There has not been a better president to inspire and address the American people and those across the globe. That's how he earned the title of the Great Communicator. Kennedy was very good at communication, and in my opinion would be second on the list. The worst speaker was George W Bush. Barack Obama is the most overrated speaker. And really I don't think he is all that good.
In terms of the impact to our nation, the last seven years have been a total disaster. Race relations have returned to the lows of the 1960's. In many ways worse, because of all the progress that has been made. North Africa and the Middle East have been turned into a total disaster area, due Hillary Clinton leadership into the "Arab Spring". And now Europe is feeling the pain, due to the unprecedented massive migrations from these areas.