The short-term is unlikely, the dollar is still strong now, this is caused by Trump, but this is not completely good, when the dollar releases side effects, the world will fall into a financial crisis.
Yes, overall the dollar is not volatile at all. Rather it is most stable currency for the past decade. Currently the political things are unstable which is causing the dollar value to shuffle.
Well for me, I think nothing has been stable for more than few years keeping all the stockholders in consideration. People are different and they behave different to different things. For dollar, like you have said, different governments of US have been dealing with it in different scenarios. Some have worked it amazingly and some ruin their efforts simply. So this is regular thing.