How many politicians it takes to change a light bulb?
Personally, I'd say none. They would study the bulb until the building and fixture to which it was attached rotted and fell apart. Then they would bulldoze it, build a new building with new fixtures and pay several government employees to put in new bulbs at the rate of about one per hour to allow for plenty of breaks.
Bragging rights to the person who can comes up with a better answer.