Just read the news from Yahoo.com
"Even so, the presence of both leaders at a celebratory news conference underlined the expectation that the Senate could pass the most sweeping immigration bill in two decades, and act before leaving on a long vacation at the end of the week.
The developments marked a turnaround from Wednesday, when it appeared negotiations had faltered. The key sticking point involved the 11 million illegal immigrants in the country, and the struggle to provide them an opportunity to gain legal status without exposing lawmakers to the political charge that they were advocating amnesty for lawbreakers.
While final details were not available, in general, the compromise would require illegal immigrants who have been in the United States between two years and five years to return to their home country briefly, then re-enter as temporary workers. They could then begin a process of seeking citizenship."