To answer generally, people avoid those styles of debate because they go against everything that is involved with being a politician.
Whichever candidate is in the power position in the campaign will always refuse to engage in debates like this, it’s just a historical trend.
If you’re up 13% (just a random number) then a debate has little chance of creating any real gains for you, likewise your opponent has no reason to be overly cautious in his argument because he himself has nothing to lose.
It’s just smart strategy on the part of the “stronger” candidate to not give his opponent a chance like the Lincoln-Douglas debate.
It’s not hard to ask loaded questions, and if you insist on asking enough of them you continually increase the chance of forcing a gaffe. Certain questions are very difficult to answer, or even invalid from an intellectual standpoint.
In a completely open debate none of that would matter, though. It’s easy to take a question without serious intellectual merit and phrase it in a way that viewers will find it legitimate. Such a question could be impossible to answer without losing face on some front.
Think of it like this.
In football if you’re up 21-14 with 45 seconds left, what do you do? Do you go at the opponent full force to try and guarantee they have no chance to win after your possession?
No, that would be foolish. You run the football, force them to use their timeouts, then you kneel the ball until the clock ticks away.
It’s always smarter in football, and in this case politics, to play containment. Limit the methods of attack that your enemy has, in doing so it may limit yourself in YOUR methods of attack, but if you force the game into a slow moving no-score type of ball with the lead all you’re doing is maximizing your chances of finishing up the game without allowing any 4th quarter heroics.
To get more specific, I don’t really know why Bush is considered such a failure at debates.
Al Gore was widely considered, even by Republicans, to be the more intelligent candidate in 2000. But in the debates nothing happened, Gore didn’t tear Bush up at all. Bush didn’t fall over himself and start foaming at the mouth.
Some analysts say Bush came out looking the best in those debates, I tend to agree because I think the debates helped him greatly. Gore made great factual points but he made them in a way that really just hurt his personality points and turned off some voters.
Ann Richards was considered a very hard ball political genius, she was soundly destroyed by George Bush during the gubenatorial race in Texas. Bush gets tongue tied from time to time but I’ve yet to see any truly objective or verifiable evidence that the man is anywhere near as stupid as you people claim he is. I’ve also yet to see these “debating failures” that supposedly plague him, either.
Furthermore, the debates are of little importance. Almost no one bases their votes on them, and in all honesty no one should.
Debating skills have nothing to do with executive leadership. The President has never in my historical memory gotten things done by going over to Congress and debating points to the ground. No, the President tends to get things done with good 'ole fashioned politicking.
The idea of a “factual quiz” is just stupid. This isn’t Quiz Bowl 2004. If we’re going to make candidates know obscure trivia about the world (like how many languages are spoken in Russia, what is the national bird of Colombia et cetra) then let’s pull Ken Jennings away from his millions and appoint him President right now.