By: Mark Glennon* Senate President John Cullerton has rekindled his idea that meaningful constitutional pension reform can be accomplished by offering a swap to pensioners — accept lower benefits in exchange for some sweetener. It’s called the “consideration” approach, and most of the press is reporting it as a serious alternative to the approach recently invalidated by the Illinois Supreme Court. Here’s what the City of Chicago, also searching desperately for a means to accomplish meaningful reform, said about it in a sworn court filing earlier this year: Nor would ‘consideration’ work from an economic standpoint. To