Folks elect a person to all sorts of posts, not just the president, not really based on what the guy actually promised, but on what they think he promised. And many politicians exploit that wishful thinking by saying things that can be interpreted in several different ways or sound one way but in fact, if you listen or read carefully, mean something different.

Then the guy does get elected and the good folks who put him in the job (silly people) expect him to actually deliver on their wishful thinking. And that does not happen.

In other cases, a politician will engage in this wishful thinking himself and make promises without having a clue of how to make them true. When he gets elected, he finds out that just because he got elected into a job, he still can't make everything happen the way he would like to and a magic wand does not come with the job.

Naturally, the voters are disappointed, call the guy a liar, and hate his guts. In the next election, they elect somebody else who promises them a chicken in every pot and the circus keeps repeating itself.

If the voters do not change, why should the politicians change?

It mainly depends on how well we are doing financially. Then on how well grown kids are doing so they don't have to move in with their kids or worse yet, so the kids don't have to move their family back into their parents house.