It is out of character for him to come out on the side of Republicans, ridicule, impugn the Democrats on any issue as he did here. I suspect “Nigger Lake” was too good of a story to ignore, conjured up the Guide to the 100 Other Places in the U.S. Named ‘Niggerhead’ as a segway into the story.
But also note that he finished by taking on his favorite target, Gretchen Carlson, and making her out to be a hypocritical airhead again. Not that she doesn’t provide him with the ammunition.