The top Republican on the Senate Finance Committee said that he could not support healthcare legislation drafted in more than three months of bipartisan negotiations by the chairman of the panel, and several liberal Democrats criticized the bill from the other side of the political spectrum. The statement by the Republican, Senator Charles E. Grassley of Iowa, came just as the chairman, Senator Max Baucus, put the final touches on his bill to provide health benefits to millions of the uninsured, according to the New York Times.