In his tweet promoting the video ad, Trump writes, “It is outrageous what the Democrats are doing to our Country. Vote Republican now!” As the ad cycles through Bracamontes’s chilling threats in the courtroom, a banner reads, “DEMOCRATS LET HIM INTO OUR COUNTRY.”

The focus then switches to footage of a migrant caravan overwhelming fences at a checkpoint, and then to a Fox News clip in which a migrant tells a translator that he plans on seeking a pardon for the “felony he committed … attempted murder.” Again, the multitudes splash across the screen, with this banner, “WHO ELSE WOULD DEMOCRATS LET IN?”

... The video stigmatizes a large group of people of color as criminals — killers bent on coming in and killing the law-abiding residents of the United States. It’s another in the long list of shocking-but-not-surprising developments in the Trump presidency. This is Trump’s remarks about Mexico’s “rapists” in video format.