Per a breaking news email from Politico:
Sen. Joe Lieberman (I-Conn.) says he will join a Republican filibuster against the Senate Democrats’ health care reform bill unless the public option is removed.
Also Tuesday, conservative Democratic Sen. Ben Nelson of Nebraska warned that his vote remains uncertain for a bill with a public option.
From the same story:
[GOP Sen.] Snowe has indicated her preference for a “trigger” provision that would mandate creation of a public health insurance option in the future if specific thresholds for expanded coverage and other changes were not met.
Snowe issued a statement Monday saying she was “deeply disappointed” about Reid’s decision on the public option. She said that a decision in favor of a trigger “could have been the road toward achieving a broader bipartisan consensus in the Senate.”
By my count, that leaves only 58 or 59 potential votes for Reid’s “compromise” … and (as far as I can tell) other conservative-leaning Democratic Senators (e.g., Sen. Bayh from Indiana) have yet to weigh in.