What does the phrase "not a dime worth of difference" suggest about the speaker's view on political parties?

The phrase "not a dime worth of difference" implies that the speaker perceives no significant distinction between the political parties in question. This expression suggests a strong belief that both parties are equally ineffective in addressing the issues at hand or achieving meaningful change. The use of "not a dime worth" conveys a sense of frustration or disillusionment, indicating that the speaker feels both parties fail to offer any valuable solutions or benefits.

While the other options touch on various perspectives towards political parties, they do not capture the essence of the speaker's sentiment as clearly as the interpretation that both parties are viewed as equally ineffective. The phrase points to a belief that regardless of which party is in power, the outcomes and policies will remain disappointing and unhelpful.