OK, this is a doozy.
Trump has made his first attack ad on Hillary. He posted it on Instagram.
It attempts to turn the cute video of Hillary barking into a demonstration she is ill equipped to handle Isis or Putin. I cannot say I have ever seen anything like this in a presidential campaign, although given his attack on Rubio with a water bottle I guess I should not be surprised.
My suspicion is that this plays to his easily fooled base who value his toughness from his bullying, but I expect it will piss off women and anyone who is serious about defense in Washington, in the Pentagon, etc.