And back up goes Wall Street. U.S. stocks are rallying Monday after President Donald Trump said “it will all be fine,” just days after he sent the market reeling by threatening much higher tariffs on China.The S&P 500 jumped 1.1% to recover a little less than half of its drop from Friday, which was its worst since April. The Dow Jones Industrial Average was up 413 points, or 0.9%, as of 9:35 a.m. Eastern time, and the Nasdaq composite was 1.3% higher.“Don’t worry about China,” Trump said on his social media ...