India, May 31 -- US President often appeared to conduct diplomacy the way someone plays a video game.

As the world watches a US President struggling to recover from the catastrophic war with Iran, he himself created, a word keeps surfacing which is not typically associated with the most powerful office on earth: "impulsive". Not decisive. Not bold. Not even reckless, which at least implies some awareness of risk. Impulsive, acting before the thought is finished, before the advisers are consulted, before anyone has considered what comes next. That quality, more than ideology and more than any particular policy, is what defines Donald Trump's second term; and it will define his legacy. By any measure, Trump has stretched presidential power...