That’s probably the time it will take to get him drugged up enough to get him to sound somewhat coherent.
What if he gets befuddled in the advisor group rehearsals and agrees to the Hillary group and also the Biden puppet masters group. Then has secret earpiece for each in opposite ears. The replies to questions start to conflict and go on at the same time in a swirl on confusion causing him to flip out and start screaming and holding his head.
Or as in Goldfinger’s crooked card game earpiece scene, GOP takes over the earpieces and says: “Fetterman, start losing and losing big. Now.”