Could there really be a senator named Tagg? A report in the Boston Herald on Monday suggests it’s a real possibility: Mitt Romney’s son could be eyeing a run for Secretary of State John Kerry’s former Senate seat—although at least two sources close to the family tried to quash the rumor, telling ABC's This Week it was not happening. Romney, 42, the oldest of Mitt’s five sons, was a regular on his father’s campaign trail in both 2008 and 2012, although his political experience is pretty scant. It might not matter, though, as Massachusetts Republicans have been searching somewhat desperately for a candidate for the race after former U.S. senator Scott Brown said he wouldn’t run. Democrats Ed Markey and Stephen Lynch will face off in a primary, possibly joined by Middlesex District Attorney Gerard Leone.