Seeing firsthand how to jab the other side for political points — or at least to make a point stick — he says Fetterman’s style is both engaging and effective.

“It is no surprise that Dr. Oz has a new daddy whose name is John Fetterman,” Parkhomenko joked.

Republicans in the state see the wisdom of the strategy, but also sounded a note of caution.

“Fetterman’s Twitter assault has worked mostly because it is unopposed,” said Keith Naughton, a Pennsylvania-based GOP strategist.

“If Oz wasn’t mentally and physically on vacation, it might be an even fight. Pennsylvania is a very parochial state, so the ‘outsider’ argument is always powerful,” he added. “The danger for Fetterman is if he falls in love with ‘winning Twitter’ as hardly any voters are engaged there and candidates can get sucked into the quicksand.”