clearly "declared that Northern Europeans are a superior subspecies of the white race". The Immigration and Nationality Act of 1965 opened entry to the U.S. to non-Germanic groups, and significantly altered the demographic mix in the U.S. as a result. With 38 U.S. states having banned interracial marriage through anti-miscegenation laws, the last 16 states had such laws in place until 1967 when they were invalidated by the Supreme Court of the United States' decision in Loving v. Virginia. These mid-century gains had a major impact on white Americans' political views; segregation and white racial superiority, which had been publicly endorsed in the 1940s, became minority views within the white community by the mid-1970s, and continued to decline into 1990s polls to a single-digit percentage. For sociologist Howard Winant, these shifts marked the end of "monolithic white supremacy" in the United States. After the mid-1960s, white supremacy remained an important ideology to the American far-right. According to Kathleen Belew, a historian of race and racism in the United States, white militancy shifted after the Vietnam War from supporting the existing racial order to a more radical position (self-described as "white power" or "white nationalism") committed to overthrowing the United States government and establishing a white homeland. Such anti-government militia organizations are one of three major strands of violent right-wing movements in the United States, with white supremacist groups (such as the Ku Klux Klan, neo-Nazi organizations, and racist skinheads) and a religious fundamentalist movement (such as Christian Identity) being the other two. Howard Winant writes that, "On the far right the cornerstone of white identity is belief in an ineluctable, unalterable racialized difference between whites and nonwhites." In the view of philosopher Jason Stanley, white supremacy in the United States is an example of the fascist politics of hierarchy, in that it "demands and implies a perpetual hierarchy" in which whites dominate and control non-whites. 21st century The presidential campaign of Donald Trump led to a surge of interest in white supremacy and white nationalism in the United States, bringing increased media attention and new members to their movement; his campaign enjoyed their widespread support. Some academics argue that outcomes from the 2016 United States Presidential Election reflect ongoing challenges with white supremacy. Psychologist Janet Helms suggested that the normalizing behaviors of social institutions of education, government, and healthcare are organized around the "birthright of...the power to control society's resources