In reply to captain paranoia:
That was after the convention.
Convention bounces are quite typical, Trump confounded that by having an unprecedented bad week attacking Kahn and numerous other gaffs on a daily basis and day by day senior GOP figures are un-endorsing him and even endorsing Clinton.
I don't think it was volatility, more an acceptance that trump can't be presidential nor trusted not to make gaffs. Republicans wanted to be able to vote for him but have now turned their backs with Johnson gaining. Clinton played it safe with Kaine and has appealed to the more moderate republicans. She's not a good speaker but she's a good politician.
Typically though things don't change that much after conventions. The only time he got ahead was between the conventions when he had a bounce and she hadn't yet.. They'd have probably come out as before, with her 3-4 points ahead, until he had an awful week and he's now been warned by the secret service.
He could end up dropping out citing its rigged..
But it's only a few months since we had an MP shot and killed, in the US we've had senators shot and almost killed, such statements do incite people who maybe unhinged. It was a disgusting comment.
HRC actually has form she did something similar, more distasteful than an actual threat, but she backed down and apologized. Trump won't.
Post edited at 21:41