08/09/2012 08:33 am ET

'Political Animals': Sigourney Weaver, Carla Gugino Discuss T.J.'s Condition (VIDEO)

Politics are a dirty business, especially where Elaine Barrish (Sigourney Weaver) and Susan Berg (Carla Gugino) are concerned.

In our exclusive "Political Animals" clip (above), Susan listens dubiously as Elaine describes the details of her son TJ's (Sebastian Stan) condition, who has a history with drug abuse.

"An allergic reaction?" Susan asks. "Yes, to an antibiotic that they described for TJ, and he went into anaphylactic shock."

When Susan refuses to believe her, Elaine comes clean. "I would never do anything to deceive the American public. But as a mother, I would do anything to help my son."

See how far she'll go in the sneak peek above!

"Political Animals" airs on Sundays at 10 p.m. ET on USA.

2012 Renewal Index: Canceled, Safe and on the Bubble Shows