(NBCNC) - U.S. Businesses hoping to hire thousands of foreign workers are closely watching as Senators debate changes to the immigration overhaul making its way through Congress.
Concerns about tracking thousands of foreign workers occupied Senators considering the landmark immigration overhaul on Tuesday.
Alabama Senator Jeff Sessions lost a fight to require biometric identification of immigrants, such as finger printing, instead of relying on photos.
"We would all concede that the biometrics approach is a more sophisticated and a perhaps a better approach, but we also have to concede it's been elusive," Senator Dick Durbin countered.
Senator Durbin is part of the bipartisan group of Senators known as the "Gang of 8" pushing immigration reform.
The bill secures the border, creates a path toward citizenship for people who came to the U.S. illegally and greatly increases the number of people given work visas.
Several House Republicans are promising to defeat the legislation.
"They have gang of eight. We're going to have gang of millions, because you can watch this bill as it processes through the House committees that will rise up against it," Texas' Representative Steve Stockman vowed.
"It grants amnesty to everybody that's here. It sends an invitation to everybody that's been deported in the past and says to them 'Reapply' because it's the 'we really didn't mean it' clause," added Iowa's Representative Steve King.
Before The House will even get to vote the bill must survive the Senate.
Senators are currently sorting through hundreds of amendments that would alter key parts of the proposal.
Read more: http://nbcnews.to/ YHCRCN