According to this report on MSNBC, liberal Democratic leaders gave in to numerous Blue Dog demands.
MSNBC is reporting:
RALEIGH, N.C. - After weeks of turmoil, House Democrats reached a shaky peace with the party's rebellious rank-and-file conservatives Wednesday and cleared the way for a vote in September on sweeping U.S. health care legislation.
In the House, Democratic leaders gave in — at least temporarily — to numerous demands from rank-and-file rebels, so-called Blue Dogs from the conservative wing of the party who had been blocking the bill's passage in the last of three committees.
The House changes, which drew immediate opposition from liberals in the chamber, would reduce the federal subsidies designed to help lower-income families afford insurance, exempt additional businesses from a requirement to offer insurance to their workers and change the terms of a government insurance option.