Harry Shearer
I think the one thing the writers across the board at The Simpsons share, whether they're left or right, is Matt's essential suspicion of authority figures. I think that's what suffuses the show, rather than a political agenda per se. They're on the side of the family, and against all the authority figures and institutions that beset this family.

Source

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  • Rabin, Nathan (April 23, 2003). "Interviews: Harry Shearer". The Onion. Retrieved 2007-12-06.