This has been the year of the TV remake: reboots of “Charmed” and “Magnum P.I.,” revivals of “Murphy Brown” and “Roseanne.” So maybe it should not be surprising to find Fox News remaking a hit from 2014: “Terror at the Border,” with a significant role for one Donald J. Trump.

For viewers who forgot the original, here’s a brief recap. In the fall of 2014, with the midterms approaching, Fox and other conservative media went in overdrive on the “border crisis” and ISIS — two issues that Republicans were using to suggest that the Obama administration was failing to protect America from teeming hordes.

As the election approached, the two stories merged into a single Frankenfear. According to the right-wing outlet Judicial Watch, terrorist organizations were poised on the Mexican border to sneak into the United States. Representative Duncan Hunter, Republican of California, claimed to Fox’s Greta Van Susteren that 10 ISIS operatives had been apprehended crossing the border.