If you think that this division is happening only now after the 2016 election and because of the investigation, I think you may have been living under a rock as far back as the second Bush. The division in the Us has been growing and getting worse for decades. One side
defending or ignoring the constant stream of lies from the white house doesn't help in mending this division. "hey, have you seen our President lie on Tv again yesturday?" "LOOK AT THE ECONOMY! IT'S DOING SO GREAT" "Don't you think having someone at the head of our country that is terrible, amoral person matters?" "WE'RE DOING SO WELL, I CANT EVEN HEAR YOU LALALALALALA".
The American President is a
proven, unrelenting and unremorseful serial liar. And like the boy who cried wolf one too many times, people now cannot believe that this is the one thing where he maybe telling the truth.