Donald Trump celebrated his March 15 primary wins by shrugging off his remaining Republican rivals. He threatened "riots" if he was denied the nomination at the Republican convention. He declared he was done with Republican debates. And he produced this Instagram video attacking Hillary Clinton. The low-budget 15-second blast begins with text on the screen, "WHEN IT COMES TO FACING OUR TOUGHEST OPPONENTS, DEMOCRATS HAVE THE PERFECT ANSWER…” broken up by footage of Putin doing Jiu-Jitsu and an ISIS propaganda video.