BRIDGEPORT - As the primaries in the Connecticut gubernatorial race heat up, the Republican and Democratic candidates have launched numerous television ads attacking each other. 

Dr. Gary Rose, chair of the government and politics department at Sacred Heart University, says negative ads have proven to move undecided voters in the past.  He also says he's not surprised both races have turned nasty for that very reason.  

On the Republican side, polls show Greenwich businessman Tom Foley with a substantial lead over Lt. Governor Mike Fedele, of Stamford.  As for the Democrats, Greenwich businessman Ned Lamont is currently leading former Stamford Mayor Dan Malloy.