Immigrants were the backbone of the Democrat Party long before 1965. The Irish were as dependable Democrat voters ss was the Solid South. As were the Jews and Italians. Germans were more evenly split.My grandfather voted 4 times for FDR enen though as governor of NY FDR broke the power of Tammany and cost my grandfather his position in NYC govt, senfing him back to being a lowly court reporter and costing my mom her chance at college. She never voted Dem. Contrary to the position of my Italian dad, a union member who voted for FDR in 44 then for Truman, Stevenson as did his father in law. So this article’s author needs a refersher on American political history.