It looks like I may have spoken too soon about House Progressives successfully forcing their way into key health care negotiations. From TPMDC, it appears the White House never called them back about their expected meeting with the President:

Remember back on Friday, President Obama discussed the public option on a conference call with House liberals? And remember how the upshot of that call was that Obama planned to meet yesterday with the chairs of the Congressional Progressive Caucus, Congressional Black Caucus, Congressional Hispanic Caucus, And Congressional Asian Pacific American Caucus?

Well that meeting never happened. Yesterday, sources told me that the meeting hadn't been scheduled, but could happen as late as this morning. Today, a House aide tells me that it's not going to happen at all.

"They never called," the aide said.

This doesn't mean the meeting isn't going to happen. However, it does mean that the Congressional Progressive Caucus still doesn't have the same role in the negotiations as, say, the 16 Democratic Senators who have been summed to the White House:

ABC News has learned that President Obama will be meeting with 16 Democratic senators (and one "Independent Democrat") this afternoon at the White House.

They are: Senators Mark Pryor and Blanche Lincoln of Arkansas, Mark Warner of Virginia, Jeanne Shaheen of New Hampshire, Mary Landrieu of Louisiana, Evan Bayh of Indiana, Claire McCaskill of Missouri, Tom Carper of Delaware, Arlen Specter of Pennsylvania, Mark Begich of Alaska, Mark Udall and Michael Bennet of Colorado, Ben Nelson of Nebraska, Bill Nelson of Florida, Kay Hagan of North Carolina, Herb Kohl of Wisconsin, and Independent Democrat Joe Lieberman of Connecticut.