In the days since, they've asked for an explanation of how the administration would show that its plan to lessen future benefits for current workers is permissible under a pair of Pennsylvania Supreme Court decisions from the 1980s.
Soon, they'll get one. Mr. Corbett said today that "within the next few weeks" his administration will reveal its case for the constitutionality of his proposal.
"We're going to explain it to the Legislature in order to get it passed," he said.
A lot depends on that how that explanation goes over -- including the calculation of prospective pension benefits for 386,000 state and school workers and a $175 million savings from pension reform the administration is counting on in its upcoming budget.