Presidential candidate interview setup that would have more of an impact:

Candidates present their program to a panel of experts (mostly economists, some foreign policy experts). The experts are then asked to give a probability of various future events (unemployment goes up/down, enter a new war, etc.) in 1, 2, 4, 10 years after the election, conditional on either candidate being elected. Some of the question are "standard", but some come from a poll of the public (or more exactly of people watching the show). Then after the election, the same experts are brought back and their past predictions are evaluated. The worst performers aren't invited back for the next pre-election show.