They know this is a lie.
For the Trump Campaign, desperate times calls for lying measures. So on Saturday, they released a new weird and amateurish ad that turns the former SOS into a malfunctioning robot.
The Trump campaign's ad opens with the caption, "Is robotic Hillary melting down?" followed by a clip that shows Clinton's appearance at the NABJ/NAHJ event. At the moment Clinton says she may have "short-circuited," video effects simulate electric sparks and smoke around Clinton's head and mouth.
Trump's entire campaign has been based on mocking and humiliating his rivals. Now he brings that technique to the general election. Since it's not just Republican base voters Trump has to please now, his constant nicknames and insults are failing to produce results, if the polls tell us anything.
For a man who claims he's an incredible rich successful and talented businessman, this ad is an embarrassment.
Also striking is that the Clinton campaign can use Trump's own words, in lengthy segments, to highlight his offensive traits and idiotic exploits; Trump on the other hand, has to ham-handedly edit and misrepresent HRC to come up with what amounts to be middle school level production values.