The Washington Times article "Pro-immigration groups ready to fight/Take united front to push for reform" from Stephen Dinan (link) includes this quote from Tamar Jacoby:

"Especially on the left-of-center side, [groups that will push for amnesty] had unprecedented amounts of money in the past year, and they're organizing the field, coordinating among themselves, they're unrecognizable almost from what they were in 2006 and 2007... The business side hasn't had as much money pumped in and hasn't transformed as much, but it's also at a different level of the game."

And this quote from Eliseo Medina of the Service Employees International Union:

"With (Lou Dobbs) finally being called to account, I think that's also sent a message to many of these people... At the end of the day, I think in the last two years that this debate has moved much much further in terms of the American people's understanding."

That, once again, shows the importance of handling the Dobbs matter in a nuanced fashion: he's still the bete noire of those who are far worse than he is, and completely throwing him overboard in a loud public way helps them.

On a more hopeful note:

...(Steven Camarota), research director for the Center for Immigration Studies, which supports stricter immigration limits, said the unity might be a myth. No matter how unified coalition leaders are, he said, they'll face a skeptical public — particularly with a high unemployment rate... He said "opinion leaders" are significantly out of touch with average voters on the immigration issue, which produces a wide but thin coalition pushing Congress to act... "There are a lot of generals but not many soldiers there. That's their fundamental problem: Most Americans don't agree with them," he said.