President Trump recently slapped $50 billion worth of tariffs on Chinese goods. Whereupon China slapped $50 billion worth of tariffs on American goods. So now President Trump is imposing an additional $100 billion worth of tariffs against China. So China says that it will respond in kind.
This is in line with President Trump’s practice of tit-for-tat, escalating retaliation, of hitting back harder whenever someone crosses him. But so far this has been limited to personal vendettas and insults on Twitter. But now the president is employing the tactic via the American economy.