The Massachusetts GOP released this web ad targeting Tim "Timmy" Cahill earlier today. This ad responds to Cahill's ad attacking Charlie Baker from a few days ago. That ad was very similar to the Baker "hands" video that was released earlier in the year. Neither have made major ad buys since Cahill's big purchase during the Super Bowl.
Meanwhile Governor Deval Patrick has not released any negative ads instead choosing to focus on shoring up his base touting his accomplishments at his governor. This is something he has struggled to do as governor. His most recent web ad focuses on small businesses and health insurance.
Christy Mihos has not released video since early February.
The MassGOP web ad is above the fold and the rest of the videos mentioned in this post are below the fold.