Step 1: short a bunch of stocks likely to affected by blanket tariffs
Step 2: "I'm enacting a massive across the board tax" causing prices to fall
Step 3: close the shorts for a gain, buy newly lowered stock aft market dip. Announce 'compromise' that brings indexes back up
Step 4: Sell and profit a second time, prepare to return to step 1
It'd be fun to see him explain it as someone else, hacked account for example which would say either he or Elmo can't keep a password safe.