That's assuming the transformational powers of The One are up to the job. A decidedly liberal course he would -- make that "will," I suppose -- pursue, because his party's roots, and his own, are over on the left side of the political garden.
It isn't necessary to be a "socialist" to believe in governmental rules, regulations, directions and orders such as characterize life in any overcast, over-regimented nation of losers. Let us say merely that Obama's utterances never ring with the melodies and intonations of human freedom. You don't hear in an Obama speech much acclaim for what Americans have accomplished. What you hear is what we ought to do now.
"Ought" to do? Who says? "Ought" is the operative word of Democratic liberalism. "Here's what you do. Here's what you need."
"Could" was the operative Reaganite-conservative word, i.e., "What if you (not us, the government: you, the investor, the inventor, the plain old worker) put your imagination and opportunities to work, creating something never seen before?"
Neither word says all that needs addressing to a democratic people. But
"could," with its redolence of freedom, is more nearly the American way than "should" or "must." If, suddenly, we want a "transformational" change, well, here's the chance to vote for it. But do we really? Do we truly?