
The most famous novel by Upton Sinclair, which exposed the harsh conditions and exploited lives of immigrants in the United States and the meatpacking industry.
in 1934 when Upton Sinclair ran for governor of California after years of running as a socialist
"
"Upton Sinclair is mentioned in the conversation regarding his 1934 run for governor. Per the core rules, when an author is mentioned, their most relevant books should be included."