Immigration bill faces five speed bumps in the Senate

FILE – In this Jan. 28, 2013, file photo Sen. Marco Rubio, R-Fla., center,speaks at a Capitol Hill news conference with a bipartisan group of leading senators to announce their agreement on the principles of sweeping legislation to rewrite the nation's immigration laws. Eight senators meet in private several times a week, alternating between, from left, Sen. John McCain’s, R-Ariz., and Sen. Charles Schumer’s, D-N.Y., offices, and in a capital riven by partisanship and gridlock, they are determined to be the exception and actually get something done. This is immigration reform's " Gang of Eight". At right is Sen. Robert Menendez, D-N.J., The group includes Sen.s Lindsey Graham, R–S.C., Dick Durbin, D-Ill., Jeff Flake, R-Ariz., and Michael Bennet, D-Colo., not shown here. (AP Photo/J. Scott Applewhite)

What's next for immigration?

A comprehensive immigration bill faces five speed bumps as it heads to the Senate floor next week.Though the bipartisan bill made it through a key Senate committee, it must now pass muster with a supermajority of senators.Here's a closer look at what's ahead:The bill still only has four Republican supporters.Sens. John McCain (left) and Lindsey Graham (right) (AP)Only the four Republicans in the Gang of Eight — Sens. Marco Rubio of Florida, Lindsey Graham of South Carolina and Jeff Flake …

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