Final answer:
The student's question cannot be directly answered as it refers to a specific book scenario. Nonetheless, in general terms, the US party system's current weakness is the inability to effectively mobilize voters' opinions more than financial shortcomings.
Step-by-step explanation:
The student's question addresses a specific scenario from a book and does not touch upon the current weakness of the US party system. Therefore, no direct answer to the student's question will be provided based on the information available. However, when discussing the weaknesses of the US party system, one can argue that a major issue is the inability to mobilize voters' opinions. This weakness relates to the political parties' challenges in engaging with the electorate, disseminating their policies effectively, and encouraging citizens to participate actively in the political process. On the other hand, raising enough money seems less of a problem for major US parties, given the significant amounts they often expend on campaigns.