Ald. Brian Hopkins (2) is set to launch a push to create a registry of Chicago murals, after it ran into a brick wall at last month’s meeting of the Zoning Committee  failed to advance Thursday, after aldermen agreed the plan designed to prevent graffiti-removal crews from wiping them out could backfire. Two new candidates for the City Council surfaced, and a commissioner weighed in on what Toni Preckwinkle would be like as mayor.