In this week's look ahead: Mike Bloomberg is running for president — yes, the former three-term mayor — so we'll take a look at both his legacy and how New Yorkers are reacting. New York state's campaign finance commission may end fusion voting (tune in to the Brian Lehrer Show Monday for more). There's a new weapon in the battle against toxic algae in Prospect Park's lake. We take a look at a new exhibit in which artists and demographers use census data to visualize New Yorkers. And: it wouldn't be Thanksgiving if we didn't bring you Mayor Fiorello LaGuardia's turkey advice from 1945.