In this case, it's a deal spotted by Washingtonian magazine's Amanda Whiting on TravelZoo for a "Luxe Spa Day on Pennsylvania Avenue" (big type) in a "Spa by Ivanka Trump" (small type).
Gosh, where could that spa be located? Your guess is as good as ours—or, say, that of Philippine Ambassador Jose Manuel "Babe" del Gallego Romualdez.
As Whiting notes, the TravelZoo offer is notable for...
... how assiduously the advertisement avoids mention of the Trump Hotel. Like, actually does not use the name anywhere (besides the spa's URL). ... Instead, the ad paints the vaguely dreamy picture of a "Luxe Spa Day on Pennsylvania Avenue," one that happens to be "housed in the stunning and historic Old Post Office Building" ... just "one block from the Smithsonian."
By the way, the cost of the deal? It starts at $69—which you certainly should not read anything into.