political exchange
The act of one person pooping into the ass of another individual, then, that individual poops the turd back into the 1st person's butt. This process is repeated back and forth until orgasm or election, whichever comes first.
That porno contained the dirtiest 'political exchange' I have ever witnessed.
or
The candidates sure had a heated 'political exchange' in last night's debate.
or
The candidates sure had a heated 'political exchange' in last night's debate.