Immigration issues have dogged the 2012 campaign as Hispanic voters are a key group in several swing states. Polling data for Hispanics can be found at http://www.washingtonpost.com/blogs/the-fix/post/a-silver-lining-for-republicans-in-the-latino-vote/2012/06/25/gJQAQ7RD2V_blog.html
The recent SCOTUS decision on SB 1070 has put Romney in a difficult position as he had previously stated that Arizona could provide a ‘model’ for other states. http://www.washingtonpost.com/blogs/the-fix/post/arizona-immigration-decision-puts-romney-in-a-tight-spot/2012/06/25/gJQAWPEr1V_blog.html
Romney has responded to the Supreme Court’s ruling by stating that he will lead on immigration but thus far has yet to specify what exactly he will do. With his approval ratings amongst Hispanics at c. 25% (far short fo the 42% achieved by Bush) it is important he gains traction on this issue. http://www.washingtonpost.com/politics/romneys-immigration-problem/2012/06/26/gJQA2HXu4V_story.html
The Supreme Court passed judgement on Arizona’s controversial SB 1070 and the American press has been packed with excellent articles looking at the story through the prisms of immigration, the role of SCOTUS and federalism.