There never seems to be anybody in the room to say, “Why don’t we consider telling the truth. Our opponents would be shocked and befuddled”. The political profession does a good job of weeding out those whose moral compass does no point downward. When Harry Truman said, “My choice early in life was either to be a piano player in a whorehouse or a politician. And to tell the truth there’s hardly any difference. I guess I am not surprised by revelations that he played the piano loud enough to drown out the groans.
I liked it better when I admired and respected him more.
Well.
I certainly appreciate Ronald Reagan much more when he utters quotes like this one:

"It has been said that politics is the second oldest profession. I have learned that it bears a striking resemblance to the first."