题目选项分析

Congressman Jones experienced a drop in his approval numbers after announcing that taxes in his district would increase the following year. His office also received a significant number of phone calls decrying this tax raise. Nevertheless, he claims that reactions to the tax increase were unrelated to his drop in voters' approval of him.

Which of the following, if true, most strongly supports Congressman Jones's position?

【选项】All elected officials in his area experienced similar drops in approval numbers at the same time.