GBT has long written a politically relevant strip. Have the contents of any of his strips ever resulted in a state or Congressional investigation?
Yes, state. A series of strips in 1985 focused on a Palm Beach law requiring domestic employees to carry ID cards within the town. Local police were authorized to stop and detain any “undesirable” without a card. The analogy to similar laws in South Africa at the time was duly noted, and the Florida state legislature passed a bill, informally known as the “Doonesbury Bill”, banning the ordinance and others like it throughout the state.