If its Monday we're adding new tariffs. This time its Brazil and Argentina(the on again , off again , on again tariffs). New rationale is they are currency manipulators depressing their currencies against the U.S. dollar.
It's not really in their interest to see their currency keep falling, Just adds to inflation and instability. Capital controls never really help.
Ironically Trump wants the Fed to weaken the dollar. What the hell does low interest rates and huge deficits do? They certainly don't strengthen the dollar.