A new report says a well-known Democrat may run for U.S. Senate. The Star-Ledger reports that Newark Mayor Cork Booker is looking at the possibility. U.S. Senator Robert Menendez is up for reelection next year and is also a Democrat. The report suggests that Booker would run only is a slot opens up and likely would not run against the party. To this point, Booker has not commented on a future run.