1.   But moderates and liberals, and many of their constituents, support it and for the last three years they have overridden conservative efforts to abolish it.

2.   Once again the power of economics overrides well-intentioned efforts to achieve a social outcome, even in a program that got its start back during the Carter administration.

3.   The bill, if enacted, would override those efforts.

4.   The U.S. Senate began consideration of a bill designed to overhaul the Food and Drug Administration, after overriding an effort to block action on the bill.