According to the Washington Times, Frist has conceded that "comprehensive reform" (read: amnesty) is dead for now and that Congress should move ahead with stricter enforcement, including 700 miles of border fencing, in the mean time:

On the Senate floor last night, Mr. Frist said he still supports comprehensive immigration reform legislation. But, he said, because no consensus can now be reached on other issues, Congress should move ahead with border security. It's not "enforcement only," he said, but "enforcement first."

"Border security is the essential first step of any effort to enact immigration reform," Mr. Frist said. "Only when we have convinced the American people of our commitment to securing our borders will we be able to reach a consensus on comprehensive immigration reform."
Is this just election year pandering, or does an enforcement only bill now have a chance?