Trump could target China in Congressional address
One theory is that Trump was waiting for his Treasury Secretary and Commerce Secretary to be confirmed before going on the attack against China.
Commerce Secretary Wilbur Ross was confirmed today.
You would expect the contents of the speech to leak but credible reports say it's not written yet and that could partly be due to hopes for secrecy. One thing that's leaked today is that Trump might call for compromises on immigration. In the big picture some compromise is good and shows that Trump is working with some kind of previously-unforeseen strategy.
In any case, if he decides to attack China, it could be the commodity currencies that get hit along with yen strength.
h/t @bradleyjason332 for the tip.