 Children's Crossing. The signs are all around you and the message is clear. Pedestrians have the right of way. This message brought to you by the Louisiana Highway Safety Commission. Proponents of a constitutional convention are making a last-ditch effort to push for one before the fall. This is the last swing at bat. LaPolitics.com publisher Jeremy Offord says Republican super donor Lane Grigsby sent lawmakers a letter to persuade them to call for a convention.