I have seen repeated claims that media outlets edited Trump's speeches to make him look bad. I saw the media do that to Goldwater in the 1964 election (I actually attended a speech and then saw what the TV and news media did to it afterward to distort it), so I could believe it might happen.
River Entertainment posted a video on Facebook, just after the Orlando shooting, showing how Trump's comments had been cleverly edited by the media to make him look insensitive. And then, guess what, Facebook took down the posting - guess they didn't like exposing the measures that were favoring their chosen candidate (so much for Facebook impartiality).
HOWEVER, you can still find the transcripts, and the videos, at the Daily Caller, in the article Watch How NowThis Doctors Video of Trump to Distort His Message.
It is an education, and will make you distrust the media from now on, if you don't do so already.