The immigration reform bill is making its debut in before the Senate Judiciary Committee Friday. During the hearing, opponents will be able to grill the authors of the bipartisan legislation over its contents.
The bill addresses border security, legal immigration programs, and a path to citizenship for the 11 million immigrants living illegally in the United States.
Critics say they haven't had time to read the 844-page bill since it was only introduced at 2 a.m. Friday morning. They're calling for more hearings and a long discussion process.
Homeland Security Secretary Janet Napolitano has been invited to testify. She's sure to face tough questions from Republicans about conditions along the border, which the Obama administration says is more secure than ever.
Some Republicans disagree and also contend that the immigration bill does not do enough to improve border security, even though it requires certain enforcement steps to be taken before any path to citizenship can begin.