One person, it does not matter who, deals one card to each player to determine the ranking of players for the first and only the first round.
Aces are high here, and only here.
The player with the highest card is president, second highest is VP, third is treasurer, fourth is secretary, you can make up names from this point on. Again, these rankings are only for the first round. Meaning the President chooses to sit where he wants, VP is next, and so on all around the table with the asshole last. This would be a good point in the game to declare an asshole seat. Meaning if there are not enough chairs, the asshole should stand or if one chair is of significantly lesser quality the asshole should get it, etc.