'Really is unhinged': Trump stuns by breaking 'protocol' in effort to shame world leaders

President Donald Trump went on an overnight online posting spree early Tuesday, sharing private text messages with European leaders — and in doing so sparked a wave of outrage from critics who compared his behavior to that of a teen in the “middle of his first high school drama.”

Trump shared screenshots of private text exchanges with two European leaders: French President Emmanuel Macron, who appeared perplexed by Trump’s fixation on acquiring Greenland, and NATO Secretary General Mark Rutte...