From the AP’s Liz Sidoti:

Advisers for each candidate say he will use the final debate to lay out his vision for the country and promote his economic policies while drawing differences with his opponent.

Character attacks — subtle or not — also could occur.

Sort of sounds like that part in a TV ad for Latest Pharmaceutical To Ask Your Physician About when the voice-over hustles through the unpleasant possible side affects (headache, hearing loss, and the desire— subtle or not — to stab your eye with a fork also could occur…)