Answer and Explanation:
The working class in the United States is a socioeconomic group that typically includes workers in the service sector who hold less than a four-year college degree. Historically, the working class has been predominantly white and male, but it has become increasingly diverse in recent decades. Common challenges faced by the working class include wage stagnation, declining worker power, and meeting the rising cost of living. The working class is often defined by economists and pollsters as those lacking a college degree, rather than by occupation or income. However, there is considerable ambiguity over the term's meaning, and sociologists have different definitions of the working class. According to a Gallup survey from April 2022, 73% of Americans identify themselves as belonging to the middle or working class.