Final answer:
Farmers supported Granger laws in their state legislatures to regulate the railroad industry and protect their interests.
Step-by-step explanation:
The farmers supported Granger laws in their state legislatures to regulate the railroad industry. The Grange, a farmers' organization, aimed to address the unfair practices of railroads such as selling the best lands to businesses, charging higher shipping rates, and charging different rates to different individuals. They elected officials who passed state laws known as the Granger Laws, which protected farmers' interests and regulated the business practices of railroads.