Stashing cash in a high-yield savings account is the smart thing to do with your emergency fund. You want that cash “liquid” (i.e., not tied up in investments) so you have it right when you need it.
To be sure, it isn't entirely clear the extent to which Trump will go through with his pledges about Day 1 tariffs, or if they're mostly rhetoric and/or a negotiating tactic. It's possible countries ...