Prepare to deal with dealmaker

If US President Donald Trump starts a tariff war, it will upend rule-based world trade and India's economy will be ruined. Like Germany and France have realised, India must fend for itself

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The office of President of the United States is unique because of its vast specified and unspecified powers, aided by the fact that America is the richest country in the world. Exercising those powers, William McKinley expanded the territory of the United States and annexed Puerto Rico, Guam, the Philippines and Hawaii. Woodrow Wilson and Franklin D Roosevelt suppressed free speech and used executive orders to detain or deport foreigners and dissidents. Barack Obama started a war in Libya without the authorization of the US Congress under the War Powers Act, 1973. Other presidents have tested the limits of the office and got away with apparently unconstitutional acts.