The dollar index — which measures the value of the greenback against several major global currencies — spiked 1.11% to 109.58, pressuring the currencies in the region. The Chinese offshore yuan dropped 0.36% to 7.347. The Indian rupee fell to a record low of 87.101 against the dollar. Asian currencies weakened sharply Monday as the U.S. Dollar rallied after U.S. President Donald Trump slapped tariffs on several countries over the weekend. The dollar index — which measures the value of the greenback against several major global currencies — spiked 1.11%...