They are running an ad (see below) taking his quotes from his 1994 debates with Ted Kennedy during his senate run. It sounds like a pro-Romney ad, but it quotes him saying things that will make the right wing dead-enders who are the base of the Republican party hate him.
Of note, he killed himself during the debates with Kennedy for asserting that as a rich man, Kennedy never gave anything up about public service (Except, of course, for his brothers Joe, Jack, and Bobbie), and that he had no experience with regard to the complexities of gun control (except of course for his brothers Jack and Bobbie).