That's the President of the United States trying to explain his very casual relationship to truth to ABC News' White House reporter Jon Karl. It's a statement that, like many things Trump says, is unintentionally revealing about what he considers facts and how much commitment he feels to ensure he is speaking the truth when communicating information to the public.

The reality is this: Trump tells the truth -- defined as an agreed upon fact or facts -- when it works for him. When established facts back up something Trump either innately believes to be true or something he wants to be true for political reasons, he is more than happy to tell the truth. But when the facts don't back up a Trump view or claim, he has zero compunction in creating his own "truth" that works better for his purposes.

Here's his full answer to Karl, which gives you an even better sense of what Trump thinks about truth:

"Well, I try. I do try ... and I always want to tell the truth. When I can, I tell the truth. And sometimes it turns out to be where something happens that's different or there's a change, but I always like to be truthful."

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