President Trump assumed that waving a big stick in front of Venzuela's Nicolas Maduro would result in him agreeing to step down, since the US has all of its economic and military might to bring to bear. But Maduro has called his bluff, and suddenly Trump is finding that the ground is disappearing under his feet. The attacks against boats are attracting talk of war crimes. Congress is starting to get seriously unhappy. And the latest revelation about a second strike made just to kill survivors - a war crime in any similar context - has the administration changing its story daily as it slowly realises that consequences are coming. Let's discuss.