Not much doubt about that. Cynthia isn't all that dumb, she just SOUNDS dumb because her world-view is so paranoid and crazy.
Patty is in a league by herself when it comes to dumb. She has that deer in the headlights look ALL the time. Cynthia just has it occasionally, when her world-view comes up against some irrefutable fact or other (like a crashing defeat in the Dem primary for example.)
Now Cynthia's daddy - HE's dumb!