Without knowing anyone's individual situation it's hard to answer, but at the very least you should have 3-6 months expenses in a money market / savings account. You don't want to be in situation where you are forced to liquidate assets at below market prices.

But that's always the case, not only when the executive implements new tariff policy. Predicting a recession in the next decade is like predicting a sunrise tomorrow morning.

Sure it's always the case but not everyone does it. Most personal finance advice is based on the assumption that recessions are inevitable and people should prepare for them, in this case especially if they are likely to occur within 4 years.

I'm not advising timing the market, several illustrative arguments in this thread showing how it can not pay off, especially if selling is a taxable event.