In late $2019,$ automakers General Motors $($GM$),$ Toyota, and Fiat Chrysler announced opposition to states' authority to set their own vehicle pollution standards. Soon after, the state of California announced they would no longer purchase new GM$,$ Toyota, or Fiat Chrysler vehicles for state government fleets. In $2020,$ a poll conducted by a research and communications firm found that over $70$ percent of respondents said their opinion of GM would improve if the automaker reversed its opposition and supported stronger pollution regulations. GM experienced a $\_\_\_\_\_.$