Americans got a good look tonight at a president of the United States who is capable of sounding like one.

Donald Trump’s speech a roomful of soldiers at Fort Myer, Va., was sober, a bit somber and serious. He talked about changes in war strategy in Afghanistan and scolded our allies in Pakistan for not doing enough to fight terror.

I generally don’t agree with Trump’s policy, but I’ll give him credit for looking and sounding like someone who occupies the most powerful and important office on Earth.

Tomorrow, though, is another day. The president will get on Air Force One and fly to Phoenix, Ariz., to deliver a campaign-style rally speech.

I am quite certain we’re going to see another Donald Trump. We’re going to see and hear someone who’s likely to sound like the clown who attached a sort of moral equivalence between the Nazis/Klansmen and those who opposed them in that Charlottesville, Va., riot.

Oh, and then the man who tonight said our troops fighting in Afghanistan need to return home to a nation of love and tolerance well might issue a pardon to one of law enforcement’s most divisive and cantankerous lawmen. I refer to former Maricopa County Sheriff Joe Arpaio, who’ll attend that Phoenix rally alongside the president.

Arpaio has been convicted of violating the civil rights of illegal immigrants and faces a prison term. Unless, of course, the president pardons him, which he has said he is “seriously considering.”

How do you think that’s going to play as the nation is still reeling from the Charlottesville chaos?

Which of these Trumps is the real one? The serious and sober man who spoke tonight? Or is it the one who’ll get his base all worked up with fiery and furious rhetoric?

I’m thinking the real Donald Trump will show up in Phoenix.