1.   As lawmakers return from the recess that began before the national political conventions, they confront a new political calculus.

2.   At a White House meeting last weekend, however, it became clear that the political calculus was equally complex here.

3.   But he thinks the political calculus still does not favor dramatic action on the embargo, and certainly not in an election year.

4.   But in the complex political calculus of city budgets, Giuliani undoubtedly knew he would encounter such criticism no matter what he did.

5.   But it quickly refigured the prevailing political calculus.

6.   But Social Security is squarely on the agenda for the presidential race, even if the two campaigns have not fully determined the political calculus that surrounds it.

7.   But of course the political calculus is more complicated than that.

8.   But part of the political calculus behind the shift of other Republican freshmen is that all this talk of revolution has frightened voters.

9.   But the political calculus for both parties is changing along with the economic outlook.

10.   But the prospect of a Clinton-Giuliani race is challenging this familiar political calculus.