Time for storytelling! It springs from the tale of Alice in Wonderland.
At a point in the beginning of the story, the girl from Alice in Wonderland finds herself in an confused situation. She begins to cry, and her tears form a lake. She begins to swim to get out of the lake of tears. On the way she meets a mouse, a cat, an eagle, and a Dodo. When they are all safe back on the shores of the tear lake, they have to figure out a solution to get dry again. The Dodo suggests that they run themselves dry. It suggests that they have a race. The Dodo loosely marks out an area as race track, but doesn't define starting point, goal, rules of procedure, frame, or time period for running.
So begins A Caucus Race. The participants begin and stop whenever they please, and run the race according to their own rules. So you might imagine some running in circles, others in ovals, some may form figures of eight - others again may zigzag across the track. Some with breaks, some without. They simply stop when they don't care to run any more. As they gradually finish, they all crowd around Alice as appointed referee and ask: Who won the race? Sharp as she might be, Alice finds this a little hard to determine - since they had neither goals, frames, nor rules in common. She cannot measure it. So she declares everyone a winner. They only agreed on one thing - the purpose: To make a race in order to dry up together.
This is very much how political debate takes place. The logic is also derived from the Garbage Can model. And I will refer to this in my next segment.
A Garbage Can model for decision making: