Trump said Obama screamed at a protester
Someone on imgur or reddit made a terrific split screen video showing the Obama speech with the heckler and Trump lying about it.
It is right there, video showing Trump lying. Making false statements, that he likely knows are false, to get a reaction from his fans. And both videos can easily be sourced for fact checking.
What amazes me is how Trump constantly lies, he makes up ridiculous stories that are easily shown to be wrong. Yet none of it sticks to him, or bothers his supporters. When shown clear video proof of him lying in the aforementioned speech, his supporters never say " yeah, he should not have said that". Their response is to attack Hillary. Apparently that cancels out any nonsense Trump says.