I wonder if the writer for Yahoo! Sports went searching for an editor for help with his latest article. Do you think he was looking for advice about capitalizing the word mayor? (It should be capped because it precedes the mayor’s name.) Was he searching in vain?
That might explain another mistake, which isn’t exactly in the same vein, but which affects readers’ perception of the writer. Some might think that only a truly vain writer wouldn’t bother to Google the idiom to make sure he got it right.