Hefty Trump tariffs surprise markets, S&P futures slide

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"How individual countries or blocs of countries respond to what is being said is the other piece of the puzzle...depending on what other countries do, it still feels to me like the market wants to use this 5,500 level (on the S&P 500) as a springboard." "We've just got one side of the story, which is what we're doing. And the other side of the story is how other countries respond to what we're doing. So that's a big component to how the market ultimately digests what is being said." "If Republicans keep banging on about tax cuts, I wonder...