Immigration declined in the 1920's so that when FDR became president it was easier to build a working class coalition. After 1965 when president Johnson signed into law a bill that allowed family unification it was seen as not adding significantly to legal immigration. Yet in the period after 1965 millions of immigrants entered the US. This writer says the Democrats have forgotten that FDR built the Democratic worker base when immigration was not an issue. Today the rise in immigration has muddled the Democrats efforts to build back the working class coalition of FDR, with loss of support from workers and non college educated people who see migrants crossing the border as a serious problem.