 Cullerton led the senate during the impeachment trial, and subsequent removal, of former Governor Rod Blagojevich.Cullerton served as a delegate to the 2012 Democratic National Convention.In May 2017, Cullerton intervened in a land dispute outside of his district when he advocated, on behalf of the Keefe Family Trust, to pave over a section of publicly owned wetland to build a 28 foot long driveway, which would require killing approximately 48 mature trees in a small old-growth forest.