https://www.salon.com/2017/12/20/gop-tax-plan-doubles-down-on-policies-that-are-crushing-the-middle-class_partner/
"Contrary to what some may think, however, the U.S. has not always had a large middle class. Only after World War II was being middle class the national norm. Then, starting in the 1980s, it began to decline. President Donald Trump has portrayed the tax plan Congress is wrapping up as a boon for the middle class. The sad reality, however, is that it is more likely to be its final death knell. To understand why, you need look no further than the history of the rise and decline of the American middle class, a group that I’ve been studying through the lens of inequality for decades. The middle class, which Pew defines as two-thirds to two times the national median income for a given household size, began to grow after World War II due to a surge in economic growth and because President Franklin Delano Roosevelt’s New Deal gave workers more power. Before that, most Americans were poor or nearly so. For example, legislation such as the Wagner Act established rights for workers, most critically for collective bargaining. The government also began new programs, such as Social Security and unemployment insurance, that helped older Americans avoid dying in poverty and supported families with children through tough times. The Home Owners’ Loan Corporation, set up in 1933, helped middle-class homeowners pay their mortgages and remain in their homes. Together, these new policies helped fuel a strong postwar economic boom and ensured the gains were shared by a broad cross-section of society. This greatly expanding the U.S. middle class, which reached a peak of nearly 60 percent of the population in the late ‘70s. Americans’ increased optimism about their economic future prompted businesses to invest more, creating a virtuous cycle of growth. Government spending programs were paid for largely with individual income tax rates of 70 percent (and more) on wealthy individuals and high taxes on corporate profits."