Real-estate mogul Donald Trump had some more schoolyard-esque taunts Thursday night for his chief critic on the presidential campaign trail. In addition to mocking former Florida Gov. Jeb Bush (R) for making his supporters fall "asleep" at rallies, Trump shared an image depicting Bush at a lonely birthday party. The image showed Bush sitting alone, with a birthday hat, staring at some cake. The original image was apparently a stock photo of someone else. Here's the tweet - which would be highly unusual if it were sent out by any other presidential candidate: