"A lot of key senators that were thought to be supportive have announced in recent days that they don't support it," the Alabama Republican said on ABC's "This Week with George Stephanopoulous." "The poll numbers continue to plummet. Only 20 percent of the people, according to a Rasmussen poll, support the bill now."
What needs to happen is for senators to "go back, re-evaluate and create something we can be proud of," he said. A good bill, he said, would provide for better tracking of people already in the country.
Sessions said opponents would "use every effort to slow this process down and continue to hold up the bill and read it to the American people and show them that even though they may favor the ideals of the legislation, that the legislation won't get us there."