ABC News’ Rick Klein reports: For those reading 2012 implications out of Sen.-elect Scott Brown’s victory in Massachusetts, Mitt Romney’s monthly PAC newsletter provides some insights. Brown, R-Mass., is featured in two pictures in the newsletter, and Romney takes full ownership of his victory: “As supporters of the PAC, you deserve a thank you,” the newsletter from Romney’s Free Strong America PAC reads. “Your support made it possible for Governor Romney to get behind Senator Brown from the very beginning, when polls showed him a 30-point underdog and everyone assumed the outcome was pre-ordained in favor of the Democrats.” “Governor Romney asked his entire political team to help the then-unknown Brown, and he raised early money for him at a time when very few people would give him a second look.” Indeed, several key figures in Brown’s victory — notably Eric Fehrnstrom, Beth Myers, and Peter Flaherty — were and continue to be Romney people. Brown’s campaign manager, Beth Lindstrom, was a member of Romney’s Cabinet; his press secretary, Felix Browne, was a deputy press secretary under Gov. Romney; Brown finance director Priscilla Ruzzo held that same post in Romney’s 1994 Senate race; and Will Ritter was a key advance staffer for Romney before he worked for Brown’s campaign. And while the forces that fueled Brown’s victory were far larger than any endorsements, Romney was the only major politicians who shared the stage with Brown on election night. The overlap among staffers and advisers are one factor that makes it hard to imagine Brown mounting a presidential campaign of his own in 2012.