Yeo, immigration serves the left and it is why JFK was obsessed with changing the immigration laws, to give us what became the 1965 Immigration Act.
Some studies, however, show a large disparity between foreign and U.S. born latinos, which, when combined with the low priority given the immigration issue, indicate that this is not a wedge issue. For example from May 2013:
In assessing the support or opposition for such laws, 32.28 percent of U.S.-born Latinos responded that they favor or strongly favor tougher immigration laws, compared to 9.54 percent of foreign-born Latinos. By comparison, 41.72 percent of U.S.-born Latinos oppose or strongly oppose such laws, while 71.61 percent of foreign-born Latinos shared the attitude.
This should be the topic of its own thread. Karl Rove is being lead around by the nose.