Some unions are squawking about the negative effects of the reform bill on wages, but Rep. Barney Franks takes the longer view. The May 12th National Journal reports:

Top Democratic leaders and activists see Hispanic migration as a long-term opportunity for the party. The arrival of additional immigrant workers is “bad for blue-collars,” Rep. Barney Frank, D-Mass., chairman of the House Financial Services Committee, told National Journal late last year. But immigrants can help elect Democratic majorities, and “if [a Democratic Congress] were to significantly strengthen unions, then you would offset the negative effect on the income of workers,” he said.