On the other side of the aisle, Democrats, in the view of Douglas Massey, a sociologist at Princeton, have failed to counter Republican opposition to immigration with an aggressive assertion of the historical narrative of the United Statesas a nation of immigrants, tapping into the fact that nearly all Americans are descendant from immigrants who arrived into a land they did not originally populate, and that despite epochs of xenophobia and restriction, in the end the US has been a great machine of immigrant integration that has benefited the United States and made us an exceptional nation.