The AFL CIO and the US Chamber of Commerce have reached agreement on three principles for a guest worker program; see that link for the details and what you can do about it is here.

Now, from peekURL.com/zjeYAHA :

White House press secretary Jay Carney said the labor-business joint statement represented "yet another sign of progress, of bipartisanship, and we are encouraged by it."

...A spokesman for Sen. Marco Rubio (R-Fla.), who is helping lead talks in the Senate, praised the union-business negotiations while also criticizing Obama for not endorsing a guest-worker program.

"It's good the unions have recognized there must be a workable visa program for lesser-skilled workers as we reform our legal immigration system," Rubio spokesman Alex Conant said.

See Marco Rubio for detailed discussions of how he isn't credible and how his policies would harm the U.S.