That was Mexican Andres Manuel Lopez Obrador after President Trump, no longer willing to wait on hostile, do-nothing Congress, announced 5 percent tariff on all Mexican goods. ..…

Trump's threat to impose tariffs on Mexican goods would be his unorthodox use of standby authorities that Congress has delegated to the presidency for exigent circumstances, set of unilateral powers he has been invoking with increasing aggression to bypass the legislative branch.. ..…