Pennsylvania's Senate majority leader said Gov. Tom Corbett would veto a bill requiring him to seek federal approval for an expansion of Medicaid eligibility by Oct. 1.
Sen. Dominic Pileggi made the comments Wednesday before a Senate committee voted along partisan lines not to advance the provision.
Senators overwhelmingly approved the provision in budget-related legislation Sunday night, in an 11th-hour effort to force the House and Corbett to support it, but House Republicans stripped it out two days ago.
Expanding Medicaid under a 2010 federal health care law would extend coverage to hundreds of thousands of Pennsylvanians.
Pileggi noted that the chamber is at an impasse with the House and that the budget-related bill can't wait because it also seeks $1 billion in federal money for hospitals.