Rubio’s public broadside against Volodymyr Zelenskyy on Friday was not a spur-of-the-moment outburst. It was a signal flare. When the US Secretary of State accuses Ukraine’s president of lying and casually suggests American weapons could be diverted to the Middle East, he is not freelancing. He is announcing a new reality: in Trump’s Washington, Ukraine is no longer a cause to be defended. It is a problem to be managed.