I wonder why?

Ruth Marcus asks the question with a quite obvious answer, "Why don't the candidates want to talk with us?

Meet the Press

I don't know, Ruth. You think it has something to do with the aggressive, gotcha journalism, activism, and politics that has dominated American politics for the last 6 or 7 years?

And here's the best part.

It will only end, when the gotcha games end.

Meaning: as long as you pursue an approach that makes the problem worse, the problem will persist and/or get worse.

The only solution: changing your ways.