To govern more effectively, Mr. Zedillo ought to assemble a centrist reform coalition drawn from all three major parties in the Congress.
The ad hoc reform coalition says it is close to securing the parliamentary majority needed to revamp the election system.
Others of their reform coalition faced similar fates.
Earlier, several discredited Communist deputies were asked to resign and were replaced by candidates of the Civic Forum, a loose reform coalition.
In elections last spring, an anti-Syrian reform coalition - including some members who were old civil war enemies - won a narrow majority in Parliament.
He won the job as an ally of Paul T. Jordan, the young Mayor of Jersey City, in a reform coalition.
There were no defections in the reform coalition.
But this amendment goes too far in what looks like an effort to split the reform coalition.
Maybe not even through the reform coalition, increasingly riven by disputes between moderates and radicals.
Certain influential people organizing a reform coalition whose object would be Buckley's ouster.